after one month of use 1excellent voice quality 2bass is super 3high pitch music is also very clear 4battery backup is more than 15 hrs5 very less sweating compare to other brands6 ergonomic design7 bluetooth range is more than 10 mtrsappx 14 mts8 led indicators for better known status9 all controls are in built with mic for voice call10 battery status is also shown in percentage on mobile11 can be charged with any mobile charger im charging with redmi note