i7s Tws Wireless Bluetooth Earphones short review

i7s Tws Wireless Bluetooth Earphones

Specification:
1. Driver: 15mm
2. Impedance: 32 OHM
3. Bluetooth version: i7s Pro Bluetooth V5.0 + EDR (Old i7s V4.2)
4. Bluetooth use band: 2.4GHz
5. Power level: CLASS II
6. Output power: 30mW
7. Bluetooth distance: 10 meters barrier
8. Frequency response: 20-20000Hz
9. Operating voltage range: 3.0V-4.2V
10. Mic sensitivity: -42dB
11. With A2DP / AVRCP high quality stereo audio transmission and remote control protocol
12. 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 hours
14. music time about 1.5-2 hours
15. Standby time is about 100 hours

Package Includes:
2 x i7s Pro tws bluetooth 5.0 earphones (left and right earphones)
1 x Charging box
1 x USB Charging Cable
1 x User Manual

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