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TWS Wireless Portable Bluetooth Earphone with Microphone In-ear for IPhone Android IOS with Bluetooth Charging Box


1. Impedance: 32 OHM 
2. Bluetooth use band: 2.4GHz 
3. Output power: 30mW 
4. Frequency response: 20-20000Hz 
5. Mitou sensitivity: -42dB 
6. Operating voltage range: 3.0V-4.2V 
7. With A2DP / AVRCP high quality stereo audio transmission and remote control protocol 
8. Powerful noise de-noising circuit (active noise reduction) 
9. switch between Chinese and English (boot does not connect Bluetooth state, press the switch 2 times, hear the tone switch successfully) 
10. Charging time about 1 hour (power indicator charging: red light, full power: red light off (blue light).) 
11. The charging time is about 60 minutes 
12. Talk time is about 1.2 hours (USE ALONE)
13. music time about 2-3 hours?with charger box)
14. music time about 1 hours?USE ALONE)
15. Standby time is about 100 hours
16. Magnetic contact charging
Packaging includes: 
2 x i9s Bluetooth Earphone
1 x Charger Box
1 x Charging Cable
1 x Silicone Case
1 x Manual
1 x Packing Box