Product information:

Product type: TWS true wireless headset
Bluetooth transmission distance: 8-10 meters
Bluetooth version: Bluetooth V5.2
Frequency response range: 20Hz-20KHz
Carrier frequency: 2.402GHz- 2.485GHz
Speaker impedance: 329+ 15%
Charging compartment battery capacity: 300mAh
Speaker sensitivity: 100dB+3dB
Headphone battery capacity: 33mAh*2
Charging interface: Type-c