Really shifty products such as shop name robot Go. They will give u promise u ridiculous features and a 5 year exchange warranty and lifetime repair warranty. Product arrives 1 month late with missing accessories. Another 1 month for accessories. Then u will find out item is completely different from advertised1000 man faulty battery instead of *******mah battery. Item completely damaged and faulty. When u approach seller they will claim that battery problem I man made. Not only is exchange warranty not available, repair warranty is also not available. They will beg u to bear with item and keep it. No refund exchange or repair nothjng taobao platform will ignore ur concerns. And few hundred dollars gone. That's taobao for u.