bluetooth earphones headphones handsearloop wireless headset drive call sports earphones with mic for all smart phones

brand name : cohai style : ear hook certification : none vocalism principle : dynamic origin : cn(origin) control button : yes active noise-cancellation : yes communication : wireless volume control : yes sensitivity : 115db wireless type : bluetooth is wireless : yes max output : 0mw line length : 0m support app : yes function : common headphone function : for mobile phone function : sport number of drivers : 1 plug type : none package list : user manual package list : charging cable impedance