Communication System: Bluetooth 5.0 (PAU1600)
Drivers: Ø6mm Dynamic Drivers
Frequency Response: 20Hz-20,000Hz
Impedance: 32Ω
Sensitivity: 102dB/1KHz
Earphones Battery: 50mAh Coin Battery
Charging Case Battery: 600mAh Li-Polymer Battery
Max Play Time: About 4 Hours
Max Stand By Time: About 180 Hours
If Charging Time: About 2.5 Hours
IPX4