I used to Consider MPOW as an Upcoming quality Manufacturer and Seller of product, NO Longer. MPOW Sold/Sells an MPOW DS-D6 Fitness band of which requires an APP on IOS and Android to be able to work. When Apple Upgraded IOS to 13, The device/App no longer worked, when I contact the Seller, I was told that MPOW has disbanded that group. So, for all the people that purchased these, MPOW decides to Disband and no longer support. That is a sign of an inferior organization. BEWARE, if you purchase from MPOW, expect no support. Also, they only support Sales from AMAZON in USA, you will not even get a reply unless you can provide an AMAZON ONLY Order number.. BEWARE..