This company (I guess just a few people operate) is a group fraudulent. I absolutely recommend you not to buy from this site. Actually I have tried to contact many times since they send a broken device and I sent it back. I've got no refund, no product and no reply from them. As a result, I lost my money (USD200+) and pretious time.The unpleasant feelings only remains. That's the Chinese business. Pls pay attention!