Transaction•if the shopper can not discover an identical product, the client can ship us the product and model, and we are able to present it for you.• After installation, if now not working, please contact us as quickly as possible, and our engineers will help you solve the problem.• on the time of delivery, please verify the correctness and completeness of the goods. If the goods are unsuitable or damaged, please refuse to signal and speak to us stop produced ingredients could also be used yet tested ggood operating .• Our electric ingredients voltage is 220 V, in case your country voltage is different, please contact us• Warranty:3 months guarantee, substitute and warranty. The buyer shall pay for the transportation sent back• the default shipping is Buydo steady delivery.• if you would like other transport methods, please contact us, we will give you the following transport tips :DHL, EMS, UPS, FEDEX• Customer pleasure is key for us. Please dont go away any neutral or unfavourable suggestions before contact us feedback is not the ultimate choice to clear up any problem. We can interact to solve any dispute.• Your five celebrity suggestions is our motivation, searching ahead to good feedback!Thank you very much!