✅Product name: E7Sluetooth headset
✅Bluetooth version: V5.3
✅Standby time: 110h
✅Speaker impedance ::32Ω+15%
✅Earphone sensitivity: -109dB+3dB
✅Frequency response range: 20 hz-20 khz
✅Speaker size: 13mm
✅Use time: 4~5h
✅Charging time: 1~2h
✅Chip version: 5.3
✅Headphone battery capacity: 35 mah
✅Rechargeable battery capacity: 200mah
✅Transmission distance: 10m
✅✅✅✅Function :NFC function Call function support music voice control power display multi-point connection
Usage: Wear in the ear
Bilateral stereo channel or not: bilateral stereo
Product list: Headphone *2, charging box *1, charging cable *1, packing box *1
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