Bluetooth version: 5.0 + EDROperating range: up to 10 metersTotal earphones work time: up to 30 h (using power bank)Earphones work time on a single charging cycle: up to 3 hEarphones charging time: up to 1 hStandby time: up to 120 hEarphones sensitivity: -12 dBMicrophone sensitivity: -85 dBEarphones weight: 2 x 3,45 gFunction keys allow: on/off earphones, selection next track, play/pause, answer/reject incoming calls