Original- i7s TWS wireless bluetooth earphone with charger box
Original- i7s TWS ওয়্যারলেস ব্লটুথ ইয়ারফোন উইথ চার্জার বক্স
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Driver: 15mm2
Impedance: 32 OHM3
Bluetooth version: Bluetooth v4.2 Upgraded to 5.0+ EDR4
Bluetooth use band: 2.4GHz5
Power level: CLASS II6
Output power: 30mW7
Bluetooth distance: 10 meters barrier8
Frequency response: 20-20000Hz9
Operating voltage range: 3.0V-4.2V10
Mic sensitivity: -42dB11
With A2DP / AVRCP high quality stereo audio transmission and remote control protocol12
Powerful noise de-noising circuit (active noise reduction)13
switch between Chinese and English (boot does not connect Bluetooth state, press the switch 2 times, hear the tone switch successfully)13
Talk time is about 2-3 hours14
music time about 1.5-2 hours15
Standby time is about 100 hours
