Transaction•if the client can't discover a same product, the client can ship us the product and model, and we're ready to provide it for you. • After installation, if now not working, please touch us as quickly as possible, and our engineers will let you remedy the problem.• at the time of delivery, please confirm the correctness and completeness of the goods. If the goods are incorrect or damaged, please refuse to sign and get in contact with us. • 100 percent new that means new product.• Our electric components voltage is 220 V, if your nation voltage is different, please contact us • Warranty:3 months guarantee, substitute and warranty. The buyer shall pay for the transportation sent back. Shipping• the default shipping is Buydo regular delivery. • if you need different shipping methods, please contact us, we are able to provide the following delivery tricks :DHL, EMS, UPS, FEDEX. Feedback• Customer pride is essential for us. Please dont leave any neutral or negative feedback before contact us suggestions is not the ideal way to solve any problem. We can interact to resolve any dispute. • Your 5 famous person feedback is our motivation, searching forward to pleasant feedback!Thank you very much!