TECHNICAL SPECIFICATIONS Bluetooth version: 5.1V Transmission distance: 10 meters Charging input: Type-C Earphone battery: 30mAh Charging case battery: 230mAh Music playback time: up to 2.5 hours Talk time: up to 2 hours Can be fully charged 3 times in the charging case Earphone driver size: 13mm Impedance: 32Ω Earphone sensitivity: 90dB±3 Earphone frequency: 20Hz- 20kHz
