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Model: V11
Specifications: V11 English version of the digital display touch 5.0 black English version 4000mah
Bluetooth version: 5.0 Support Protocol: Support HFP 1.7, HSP 1.2, A2DP 1, AVRCP1.6, SPP 1.2 and PBAP 1.0
Talk time: about 3-4H (full power single use)
Listening to the song time: about 3-4H (full power single use)
Battery type: 3.7V, 50mAH
Input current: 5V 1000mA
Input headphone current: 5V 100mA
Mobile power output current: 5V 1000mA
Charging battery capacity: 4000mAh/2400mAh

Packing list: Bluetooth headset 2pcs charging storage box 1pcs manual 1 certificate 1 pcs ear cap 3 sets (large, medium and small) charging line 1