Product brand: AKZ
Product model: AKZ-W21
Product type: TWS wireless headset, binaural call
Appearance patent number: ZL201930678643.5
Bluetooth version: V5.0
Battery capacity: 40mAh/single charging compartment 300mAh
Working hours: 3-4h
Standby time: 22h
Transmission distance: 10 meters
Impedance: 32Ω
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