TOPNEX product
AXL219-C
Material: APS+PCType of Battery:Polymer Li-ion BatteryBattery Capacity: 20000mAh/77WhPower Display: Segment...
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Material:ABS
Wireless Version: V6.0
Driver Element/Rated Power: 16mm/5mW
Battery Capacity: 500mAh+50mAh*2
Impedance:32Ω
Averrage battery life: ≈ 7H
Time For Charging: ≈ 2H