Transaction•if the customer can not discover a matching product, the customer can ship us the product and model, and we are able to reward it for you.• After installation, if not working, please touch us as quickly as possible, and our engineers assist you to solve the problem.• on the time of delivery, please confirm the correctness and completeness of the goods. If the products are unsuitable or damaged, please refuse to sign and call us.• 100% new that means new product.• Our electric aspects voltage is 220 V, in case your country voltage is different, please touch us• Warranty:3 months guarantee, substitute and warranty. The buyer shall pay for the transportation sent back• the default transport is Buydo standard delivery.• if you'd like other transport methods, please touch us, we will give you the following shipping tips :DHL, EMS, UPS, FEDEX• Customer satisfaction is crucial for us. Please dont depart any impartial or damaging feedback before touch us suggestions isn't the ideally suited approach to solve any problem. We can work together to solve any dispute.• Your 5 celebrity suggestions is our motivation, browsing ahead to nice feedback!Thank you very much!