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I7s wireless Bluetooth headset

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I7s wireless Bluetooth headset
Product ID:  3426
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Bluetooth version: version 4.2 Transmission distance: outdoor straight line distance 10-18 meters Battery capacity: polymer lithium battery 55mah Charging box battery capacity: 350mah (with protection board) Listening to music time: 1-2 hours Up and down music/pause playback Talk time: 1-2 hours Standby time: 130 hours Charging time: 1 hour Working current: 22MA
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