Model: M10Bluetooth version: V5.1 Transmission distance: within 10 metersHeadphone capacity: 50mAhCharging capacity of charging bay: 2000mAhCharging time: 60 minutesStandby time: 120 hoursMusic time: 3 hoursTalk time: 3 hoursInput power: 5V/1AWaterproof rating: IPX7 equipmentHeadphone charging: about 40 timesLife time: about 220 hours (need to be used with charging bay)Talk time: about 180 hours (need to be used with charging bay)Control method: touch operationCompatibility: 99% of Bluetooth mobile/computer devices on the market.