Communication System: Bluetooth 5.0 (Bluetrum 8832)
Drivers: Ø8mm Dynamic Drivers
Supported Decoder: SBC, AAC_LC
Frequency Response: 20Hz-20,000Hz
Impedance: 32Ω
Sensitivity: 94dB±2dB
Earphones Battery: 50mAh Coin Battery
Charging Case Battery: 450mAh Li-Polymer Battery
Max Play Time: About 3 Hours
Max Stand By Time: About 30 Days
If Charging Time: About 2 Hours