Description
TwoTrees TTS-55 Pro Laser Engraver With Wifi Offline Control 80W Laser Engraving Cutting Machine 445±5nm Blue Light Cnc Machine

Latest Laser Beam Shaping Technology: TTS-55 Pro uses the latest 5.5W laser beam shaping technology diode laser, it has an ultra-fine 0.08mm sharp laser focus, with super cutting penetration and precision, can cut up to 8mm thick wood, 5mm acrylic, carve ceramics and stainless steel.
Fast focus design: Combines a fixed focus lens and a knob to adjust the height. You just need to turn the knob to focus. Equipped with a fixed focus column, which makes it very easy to use.
Easy assembly structure: aluminum profile structure design, double Y-axis motors make the machine work more stably and improve the engraving accuracy. 60% pre-assembled, assembly can be completed in 30 minutes.
Square measuring ruler: X-axis and Y-axis contain precise scale lines, which is convenient for you to measure the size of engraving objects quickly.
Wide Compatibility:Support mobile APP control, wifi connection, USB connection, offline USE,The machine is compatible with various mature engraving software, such as LaserGRBL, LightBurn, Benbox, GrblController, LiteFire, supports PWM mode engraving, supports Windows Mac system, and engraving file format Support JPG, PNG, DXF, SVG, G-code, NC, BMP, etc.
Safe Design: The laser filter cover filters 98% of the ultraviolet light to the eyes. The motherboard has a separate control switch.
Machine parameters:
Model: TTS-55 Pro /TTS-10 Pro
Machine Weight: 3kg
Engraving Range: 300 * 300mm
Laser Wavelength: 445 ± 5nm
Engraving Accuracy: 0.1mm
Engraving Speed: 30000mm / min
Software Support System: MAC, Windows
Machine Material: Aluminum Profile + Plastic Parts
Power Supply: 12V 4A DC / 24V 4A DC
Control Board: LTS esp32 Motherboard (32bit)
Laser Power: 5.5w/10w (optional)
Input Power: 40w/80w (optional)
Software Identification File Format: NC, BMP, JPG, PNG, Gcode, Etc
Supporting software: Lasergrbl (Windows system), Lightburn (General)
Power type: European standard / American Standard (Optional)
Languages Supported By The Software: Chinese, English, Italian, French and German
Working Environment: Temperature 5-40 ℃, Humidity 20-60%
Engraving Mode: USB Online, TF Card (Application Program, Web Page Control)
Carving Materials: Wood, Plastic, Paper, Leather, Sponge Paper, Alumina, Etc
Engraving Mode: Graphic Engraving, File Engraving, Scanning Engraving, Contour Engraving And Pixel Engraving
Note: Transparent materials cannot be cut or engraved directly, and the surface needs to be covered.






















you may want to know
Q1. Why does the title say 80W/40W, but the laser is 10W/5W?
A: 80W/40W is based on the effective power of the laser machine of the carbon dioxide laser engraving machine, and its actual laser output power should be 10W/5W.
Q2. Can I engrave metal?
A: Yes, TwoTrees laser engraving machine uses compressed spot technology, the spot size is only 0.08mm, and supports engraving stainless steel and various coated metals.
Q3. Can it be used without an air-assisted air pump?
A: Yes, the laser can work without an air compressor, using an air compressor is just to increase the cutting effect and efficiency.
Q4. Can clear glasses and Stanley cups be engraved?
A: Yes, it can engrave glass or Stanley cups. For transparent glass, you can cover it with black paint or color value and then complete the engraving.You can contact us to watch the test video
Q5. Can this machine only cut dark acrylic?
A: Yes, the laser cutting machine can cut dark acrylic, but not clear acrylic.
Q6. Is there a user manual?
A: Yes, there is a paper user manual in English/Russian/German in the box, and there is also a QR code to get the tutorial video.
Q7. Is there a warranty?
A:Twotrees laser engraving machines enjoy long-term warranty service.
If any parts fail within 90 days of receipt, they can be replaced free of charge.
For malfunctions or other issues after 90 days, you will be charged shipping costs.
Q8. Do I need to pay tax?
We have warehouses in Brazil, Europe, Russia, the United States, Mexico, Chile, the United Arab Emirates, and South Africa. If you choose to ship from overseas warehouses, you will not need to pay customs duties.

All our items come with warranty and good after-sales service
If you encounter any problems, please feel free to contact us and we will help.
Please note! Please make sure your address is correct and complete before making payment. (For orders shipped from China, please confirm that the address is in English)
Usually, we will start shipping your order within 24 hours and provide logistics track information within 48 hours. (Some logistics channels may have delays)
Please understand that customs duties are beyond our control and are the recipient’s responsibility.
If you have questions, please consult your local customs.













0***r –
loved the packaging came separate and well package no break or bents all came same time fast shipment will update on set up so far 👍
M***o –
Tested and approved mounted really buy what promises I am very pleased with the purchase Super recommend
Customer –
Good product, the only thing I would change is the laser body holding car, if it is regulated over the Times the cartile is destroyed by action of the braking screw
R***a –
Came very fast and well packed, including the necessary tools for assembly, a USB cable and a protective glasses. Machine very well built. Now it remains only to carry out the first tests to assess the day to day.
M***m –
chegou muito Rápido. e muito bem embalado. material. parece ser de Ótima Qualidade. ainda não montei. vou montar e testar
Customer –
Chegou rápido, fácil de montar pois o manual é bem ilustrativo apesar de ser em inglês. Não vem com a placa de metal para proteger l.
M***e –
Super vendeur une question une réponse. (et très rapidement) Contente de mon achat. Je m’entraine. C’est pas facile mais je suis contente des résultats. Conseil regardez la vidéo (via le QR code avant de commencer le montage) après c’est un jeu d’enfant.
B***r –
top de verdade já estou trabalhando, empresa super atenciosa ⚡🔥
s***e –
reçu plus vite que prévu je n’ai pas encore monté le seul problème est que le mode d’emploi n’est pas en français j’espère que ça va aller
a***r –
Comprei a gravadora junto com os acessórios, porém o envio veio separado. Os acessórios chegaram com 7 dias após eu ter recebido a gravadora. Falei com o vendedor pelo chat, ele me explicou que era separado e me mandou o código de rastreio dos acessórios. Fiquei um pouco ansioso, porque na Aliexpress só tinha um código de rastreio e já indicava o pedido entregue por completo. Acompanhando pelo app dos correios, visualizava o código que me forneceram pelo chat que ainda estava em trânsito (inclusive o código de rastreio do pedido que já estava comigo há uma semana ainda constava em trânsito nos correios). Após a entrega, fiquei satisfeito com o meu pedido que chegou.
M***o –
montada testada e aprovada realmente compre o que promete estou muito satisfeito com a compra super recomendo
Customer –
Buen producto, yo lo unico que cambiaría es el carro de sustentacion del cuerpo del laser ,si se regula a lo largo de las veces se destroza el cartil por accion del tornillo de frenado
R***a –
veio muito rápido e bem embalado, acompanhando inclusive as ferramentas necessárias para a montagem, um cabo USB e um óculos de proteção. máquina muito bem construída. agora resta apenas realizar os primeiros testes para avaliar o dia a dia.
E***z –
Everything arrived excellent and in just 3 days. Works excellent, thank you very much!!
G***a –
Delivery very very delayed by customs, start a dispute but in the end it came to me and I canceled it, I have not tested it yet, when I do I will make new feedback, but I give it 5 stars because at least it came well packing
R***s –
Fast delivery, very cool machine. Not entirely sure how it works with different settings for engraving and cutting. But sometimes it jams and it makes a rattling sound… ??
v***o –
veio rápido, bem embalado. ainda não testei.
Customer –
Tudo Muito Bem Organizado // Tudo Bem Descrito.
N***O –
Recibido bastante rapido , bien embalado , todo como se indica .Buen producto y buen vendedor .Muchas gracias
E***z –
Todo llegó excelente y en solo 3 días. Funciona excelente, muchas gracias!!
G***a –
Entrega muy muy retrasada por la aduana , inicie una disputa pero al final me llegó y la he cancelado , aún no la he probado, cuando lo haga haré nueva valoración , pero le doy 5 estrellas porque al menos vino bien embalando
V***o –
After receiving, I did the assembly which took an average of about 50 min. I missed information on straps looseness and tension. In the recording head, it seems to me that it is loose and I also did not find the information of how it should be. I did a recording test, straight through my cell phone and it worked. I haven’t been able to cut anything yet, I need to study more how it works. I found it well built and easy to assemble. In the manual itself, could have future upgrade information.
Customer –
value for money
O***n –
Fantastic machine fantastic company
Customer –
Received within a week from order. All well packaged. Have yet to assemble, will add coment when assembled and tested. Many thanks to seller for excellent communication.
F***o –
Tutto bene, sia come spedizione, che merce, in questo senso, ottima qualità dei materiali, molto solido e di semplice installazione, venditore più che consigliato
S***s –
Super Teil, kam in ca. 5 Tagen an (Deutschland) Laser ist nicht für Metall geeignet! Sonst top !
V***o –
Após recebimento, fiz a montagem que demorou em média uns 50 min. Senti falta de informações sobre Folgas e Tensão das correias. Na Cabeça de gravação,me parece que está frouxo e também não achei a informação de como deveria estar. Fiz teste de Gravação, direto pelo Celular e funcionou. Não consegui Cortar nada ainda, preciso estudar mais como funciona. Achei bem construída e de fácil montagem. No próprio Manual, poderia ter informações de upgrade futuros.
L***o –
Excellent machine .. I have used a lot, it does not burn the edge of printing like some others in the market.
f***r –
O eixo y1 não está funcionando corretamente, foi instalado corretamente, a correia eu não mexi, fiz a montagem do jeito que ela veio, mas vou re-montar novamente pra ver se normaliza, eu não reparei se o motor veio com problema.
C***s –
exelente producto, la maquina funciona al 100% y el envío fue dentro de 5 días, pedí unaaquina parecida a otra empresa y se demoraron 1 mes para decirme que no la enviarían y que me reembolsará el dinero
Customer –
well designed. relatively easy to put together. Can’t wait to start using it.
O***s –
Ótima Laser de entrada, excelente custo benefício.
Customer –
ماكينة الليزر جميلة و جودة عالية 👍👍
S***i –
sensacional me entregaram com uma semana adiantado do previsto de entrega super recomendo parabéns a todos
L***o –
excelente maquina.. tenho utilizado bastante, não queima a beirada da impressão como algumas outras do mercado.
M***a –
Wonderful equipment, it is of excellent quality, very good quality. The materials feel very good, the instructions to assemble are very easy. The team works in a perfect way. We are very, very happy with the purchase. Fast Shipping. I recommend to 100% the seller
W***r –
chegou super rápido, muito bem embalado, a montagem é bem fácil, fiz is primeiros testes e está tudo ok,
D***s –
produto muito bom
Customer –
Everything went in the best possible way! Thank you very much! I would like to separately thank the seller for sending the item despite the war in my country!!!
S***o –
Entrega Super Rápida! , Vendedor atencioso, devido a eu ter comprado o produto e logo em seguida ter entrado em promoção, o vendedor ficou de enviar um acessório da máquina como brinde 👏🏻👏🏻👏🏻 ainda não abri a caixa, mas veio muito bem embalada, sem nenhuma marca, espero que esteja tudo certinho. Depois envio as fotos dela!
M***a –
maravilloso equipo, es de una calidad excelente, de muy buena calidad. los materiales se sienten muy buenos, las instrucciones para armar son muy fáciles. el equipo trabaja de una forma perfecta. estamos muy, muy felices con la compra. el envío rápido. recomiendo al 100% al vendedor
J***s –
exelente, entrega rapida dentro de la USA, probandola, muy compacta y muy bonita
a***n –
All right, as described in the ad. Very beautiful laser engraver.
2***r –
Arrived all very well packed, each separate and with protection! Delivery was very fast, scheduled for 24/06 day and arrived 11/06 day! Loved the organization of each item!! I haven’t tested it yet.
E***k –
The product is as described. I recommend the seller!!!! sent quickly and also quickly reached (approximately 1,5 weeks). There are no complaints about the work.
A***a –
Well packed product, no item missing, as advertised, I have not tested yet, but the material quality is very good.
L***a –
Chegou antes do prazo. Funciona bem! Tive alguns problemas de configuração que foram solucionados pelo vendendo! Indico!
Customer –
The machine works perfectly fine!!! Thank You so much for piece can’t wait to start my creative works
E***o –
chegou super rápido. tudo perfeito. Máquina muito boa.
E***o –
Material de boa qualidade e tem funcionado bem.
a***r –
Corresponds to the description. Excellent engraving laser
a***n –
tudo certo, como descrito no anúncio. gravadora a laser muito bonita.
2***r –
chegou todos muito bem embalados, cada um separado e com proteção! a entrega foi muito rápida, previsto para dia 24/06 e chegou dia 11/06! Amei a organização de cada item!! Ainda não testei.
A***a –
Produto bem embalado, não falta nenhum item, como anunciado, não testei ainda, mas a qualidade do material é muito boa.
E***k –
Товар соответствует описанию.ПРОДАВЦА РЕКОМЕНДУЮ!!!!Отправил быстро и также быстро дошло (примерно 1,5 недели).В работе нареканий нет.
Є***о –
Delivered for the Moscow. It was not possible to see the fact that the Ali did not. The box came from the minutes of the thought, ale everything is tzile. Zibrava on video. All pratsyu, even more, I did not start up in the well-being. Without hitting the phone. Pish the pardon…
A***u –
good quality material, they are still in the assembly process, I will come back with details,,👍👍👍
J***o –
Super graveuse laser! Je recommande à 100%!
r***o –
Chegou muito bem embalado e antes do prazo
a***r –
produto chegou rápido e funciona muito bem um ótimo acabamento ainda estou deslumbrado gostei muito do produto
C***v –
Все пришло, собрал за 1 час и сразу запустил, все работает приложения тоже запустилисть без проблем.
a***r –
Chegou antes do prazo, cumpre com o anunciado! Recomendo!
V***a –
Chegou tudo certinho, bem embalado e no prazo correto, ainda estou aprendendo, até o momento tudo funcionando corretamente.
Є***о –
Доставлено за місяць. Не відслідковувалось окрім повідомлень Алі. Коробка прийшла трохи пом’ята, але все ціле. Зібрав по відео інструкції. Все працює, ще не завсім розібрався в налаштуваннях. Не вдалося з’єднатися додатком з телефона. Пише помилка підключення…
G***l –
Very good equipment, easy assembly, and quality material. Thank you
c***r –
Works perfect very good price all came as they should
C***o –
Arrived Rudolfo right and before the deadline. I haven’t set it up yet, when information is set up. And detail, I did not pay tax. Thank you
D***a –
Equipment very easy to assemble, with all the tools, perfect, now it remains to test the laser
F***o –
Arrived in the allotted time, very well packed …. I have not yet tested the material is of very high quality.
V***o –
Não testei ainda mas veio tudo certo dentro da embalagem.
H***i –
Очень признателен хороший продукт хороший продавец
D***o –
Top demais aprovado
l***o –
a área útil de 30cm é meio pequena, mas é suficiente pra algumas coisas, a construção da máquina é bem simples, comprei a versão com laser de 5.5w mas achei fraco para o que precisava e consegui substituir por um maior de 20w de outra marca. a grade que vem é 30 cm de área total, mas a marcação de medidas é só até 25cm, achei que tivesse 30cm de área interna.
E***l –
Excellent product and seller, and it arrived within 5 days.
Customer –
tal como se describe, envío rápido,bien emabaldo, parece bien material, hay que esperar a ver si dura
e***y –
The machine feels well made. It engraves well I think and the software was relatively easy to use after I watched some tutorials. I recommend watching the assembly video alongside the instruction book. I’m happy with my purchase
G***l –
Equipamento muito bom, fácil montagem, e material de qualidade. Obrigado
C***o –
chegou Rudolfo certo e antes do prazo. ainda não montei, quando estiver montado informações. e detalhe, não paguei imposto. obrigado
F***o –
chegou no tempo previsto, muito bem embalado…. Ainda não testei mais o material é de altíssima qualidade.
D***a –
equipamento muito fácil de montar, com todas as ferramentas, perfeito, agora falta testar o laser
j***a –
I bought a piece of equipment from them in Brazil, there were some pieces they sent me the time without problem very top company I recommend them without a doubt company that cares about the customer wanted more company like that
P***c –
Delivered in 5 days. Very well packaged and description was good. Assembled in 60 minutes and made functional test. I bought the license but I see the login nowhere, work on the 30 days TestBonement.
D***g –
Arrived very quickly the date was for Day 1 are congratulated I will assemble it arrived very well packed tomorrow.
R***i –
Muito boa
P***o –
Good communication, fast delivery, seller is 5 stars. I just received it, as soon I assemble I will post some photos.
m***r –
Produto entregue rápido tudo ok , conforme anúncio !! Parabèns
j***a –
comprei um equipamento deles no Brasil, faltou umas peças mandaram pra mim a hora sem problema empresa muito top recomendo eles sem dúvida empresa que se importa com o cliente queria mais empresa assim
P***c –
In 5 Tagen geliefert. Sehr gut verpackt und Beschreibung war gut. In 60 Minuten zusammengebaut und funktionstest gemacht. Ich habe die Lizenz dazu gekauft aber ich sehe das Login nirgends, arbeite auf dem 30 Tage TestAbonement.
D***g –
chegou muito rápido a data era para dia 1 estão de parabéns vou montar ela amanhã chegou muito bem embalada.
O***a –
I will be tsikava, will be scattered in the nakuvannya, if I am not interested in the vikoristovuvati
M***l –
I was surprised by the machine. Cutting it is excellent for engraving, it is very good for MDF cutting 3mm. I really liked the experience of using with the compressor
x***n –
Very good item, easy to mount works well, attention to the software, grbl only works with a pc and light burn is paid after 30 jrs, for those who use a Mac there will be only light burn. Only problem for the moment the power supply of the air compressor which is HS, I am waiting for the Sav ….
S***i –
Engraver super. Everyone is pratsyu. Pokuvannya trohi pokodzhenya, Proto vmist neposhakzheny.
o***a –
top excelente como diz no anúncio recomendo podem comprar sem medo chegou muito rapido
D***o –
tudo. montada. entrega rápida. chegou antes do prazo.
M***s –
Armada lista para Probar
M***a –
I had a Zbaitu C80 10W for a year and it had several problems during this time, then it suddenly died and would not turn on anymore. The seller refused to give me any support during this one year, making it a really bad experience. Got this TTS-55 to replace the Zbaitu and the experience is being great. The construction is much better, cable management makes life much easier and it is really easy to setup. Just be sure to have it aligned and leveled before start engraving/cutting. Very good product. I recommend it. Arrived in 7 days.
d***r –
Alles top, mehr gibt es da nicht zu sagen. Habe es an einigen Oberflächen bereits getestet, und bin begeistert vom ergebniss. Vielen Dank und gross an den Shop.
O***a –
цікава штука буду, розбиратися в налаштуваннях, щоб ефективніше використовувати
M***l –
Me surpreendi com a máquina. O corte dela é excelente para gravação, é muito boa para corte de mdf de 3mm. Gostei muireto da experiência de usar com ó compressor
x***n –
Très bon article, facile à monter fonctionne bien, attention au logiciel, grbl ne fonctionne qu’avec un pc et lightburn est payant au bout de 30 jrs, pour ceux qui utilisent un Mac il n’y aura que Lightburn. Seul hic pour le moment l’alimentation du compresseur d’air qui est HS, j’attends le Sav….
J***n –
As described but have not had a chance to set it up and use it this is just based on what’s in the box
M***s –
Muito bem embalado
J***z –
Excelente, cumplió todas las expectativas
J***n –
I love it serves its only disappointment function is that it comes with spout to extract the air and no wine the hose apart you have to buy the pump still loves it
T***i –
The accessory for recording in cylinders was sent separately, which took 1 week more in delivery, but everything worked out.
N***s –
awesome item, does more than expected
V***k –
Гравер пришел быстро. Продавец терпеливый и отвечает на вопросы, обслуживание понравилось. Сам гравер можно собрать не обладая техническими знаниями, просто внимательно смотреть видео сборки. Оказалось что устанавливать обновление характерестик гравера уатанавливать не надо, все уже установлено. Я чуть не залетела на ” перепрошивку ” гравера по незнанию, но вроде как все нормально. Мощность его 10 w. Полностью еще не разобралась, это мой первый гравер, но очень интересно. И предстоит его еще настроить как положено. В общем пока все работает и я довольна, но в тему надо еще вникать, как во всех ЧПУшных направлениях много нюансов. Рекомендую продавца и магазин.
Customer –
Produto conforme anunciado. Excelente cortadora laser. Recomendo.
B***r –
Very fast delivery, great product 100% as described I highly recommend the seller
c***s –
excelente 👌 llegó antes de lo esperado y muy bien envalado ahora a probarlo…
S***s –
so excited to resist this. I have not put it together yet. looks great BUT I did not appreciate having to pay nearly £80 tax. Ii did contact seller to no avail they were not interested.
J***n –
Me encanta cumple su función única decepción es que viene con pitorro para extraer el aire y no ne vino la manguera aparte tienes que comprar la bomba aún así le encanta
I***N –
Arrived well and it is very well packed in the next few days the armare and I will try how it works
L***s –
Fulfills well what it promises. But it takes a long time to make cuts and recordings when compared to others in the market. Taking into account the price and the power, I believe it is the best cost benefit of the market for hobobbers, but for work I think it would be interesting a more powerful one.
D***s –
Everything came right. Before the deadline. Assembly and super easy. Thank you very much
Customer –
For this price it’s definitely a genuine laser machine, easy to use and also delivered pro works
M***ć –
already started engraving and cutting, machine is great…need more practice, but still laser engraver is excellent!
L***a –
ótima máquina, chegou bem embalada,com as ferramentas necessárias para a montagem, funciona muito bem, estou satisfeito e aconselho. só a chave USB chegou vazia,mas encontrei o aplicativo Lighburn on line…ainda estou usando a versão de prova mas com certeza vou comprar a licença… deveria ter comprado junto ao pedido. o eixo rolante funciona bem também. obrigado.
M***r –
schlechte Gebrauchsanweisung schwer zum Zusammenbau. Versand sicher und schnell.
W***s –
Agora só falta testar
t***n –
vendedor extremamente atencioso, a máquina chegou muito rápida! foi presente para meu pai que adorou! ótima máquina e empresa, indico com certeza 🙂
e***g –
Máquina muito bem feita. Montagem fácil e bem precisa , agora iremos fazer os testes .
J***a –
por lo general funciona bien el único problema es que la bomba de aire llegó con una tapa suelta
I***e –
J’ai acheté le produit avec tout son equipement soufleur rotateur etc et je les ai eu tres rapidement sauf arrivé a la douane d’algerie ils fus bloqués et j’ai fallu trouver quelqun qui se deplace a alger pour payer 30€ frais d’emagazinement et je crois si c’etais moi qui s’est deplacé il pouvait me trouver des excuses et me faire courir. Mais heureusement tout allait bien et maintenant je suis la vidéo officielle pour la monter. Tres satisfait
I***N –
llegó bien y está muy bien empacado en próximos días la armare y probaré como funciona
L***s –
cumpre bem o que promete. mas demora bastante para fazer cortes e gravações quando comparada a outras do mercado. levando em consideração o preço e a potência, creio que seja o melhor custo benefício do mercado para hobistas, porém para trabalho acho que seria interessante uma mais potente.
D***s –
Chegou tudo certo. Antes do prazo. Montagem e super fácil. Muito obrigado
C***o –
Delivery arrived much earlier than expected, very easy and intuitive to assemble, I did not even need explanatory videos, just the manual was enough. Excellent quality material, meet all the requirements, tested and approved, highly recommend.
B***o –
Overtop the machine, it is only complicated to handle the program! Anyone who does not have knowledge already buy it knowing that it is not easy!
H***s –
All right. The product arrived as described, without malfunctions. The shipment was done quickly and all within the conforms.
m***e –
perfeito material de qualidade
P***l –
Recebido. agora farei a montagem. e os testes.
K***d –
have not tried as yet will review when tried but the one I ordered came all together but had to pay extra £60.00 for customers
П***ч –
Хорошо, описанию соответствует
J***W –
everithing was great, fas delivery and seller is legend 😊😊😊
C***o –
A entrega chegou muito antes do esperado, muito fácil e intuitiva de montar, nem precisei de vídeos explicativos, apenas o manual já foi o suficiente. Material de excelente qualidade, atende todos os requisitos, testada e aprovada, super recomendo.
H***s –
Tudo certo. O produto chegou como descrito, sem avarias. O envio foi feito rapidamente e tudo dentro dos conformes.
B***o –
Top demais a máquina, só é complicada de manusear o programa! Quem não tiver conhecimento já compre sabendo que não é fácil!
L***e –
Product arrived intact and intime. Amazing service.! Thank you so much. Yet to test.