TWS bluetooth headphone

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Product Name: Plug Type TWS Bluetooth headset;
Product material: ABS + electronic components + lithium battery;
Chipset:BuildWin 5.0 double call, touch Control;
Bluetooth version: V5.0+EDR
Supporting protocols: HSP1.2, HFP1.6, A2DP1.3, AVRCP1.5
Sensitivity: ≥90db
Working frequency: 20-20KHZ
Working voltage: earphone 5V/50MA; charging box: 5V/1.5A
Charging time: 1H
Working time: 3H
Standby time: 480H
Working distance: 10M
Single earphone battery capacity: 50mAh;
Central control battery capacity: 250mAh;
Times of charging: 3 times