I7 i7s TWS Wireless earphone in-ear Bluetooth earphones Earbuds Headset With Mic For iphone smart phone

How to match the two earphone:

after received package, you should match the two earphone before connect with bluetooth:

1. listening to music, support music and phone call,

2. Caller ID, the last call back, English voice prompts, boot, pair, shut down the phone power will be low voice prompts;

3.  phone power display, you can always watch the headset power situation, do not worry about the headset no electricity to make your life worry;

4. Bluetooth headset every time connected to the phone after the shutdown, and then open the Bluetooth headset will automatically connect back to the phone, but also more convenient;

5. Intelligent compatibility: support all with Bluetooth mobile phone, tablet, notebook, singing it, QQ music, movies, etc., all the mobile phone;

Features:

1. Driver: 15mm

2. Impedance: 32 OHM

3. Bluetooth version: Bluetooth v4.1 + EDR

4. Output power: 30mW;Battery capacity 60MAH

5. Bluetooth distance: 10 meters

6. Frequency response: 20-20000Hz

7. Operating voltage range: 3.0V-4.2V

8. With A2DP / AVRCP high quality stereo audio transmission and remote control protocol

9. Powerful noise de-noising circuit (active noise reduction)

10. switch between Chinese and English (boot does not connect Bluetooth state, press the switch 2 times)

11. Charging time about 1 hour .

12. Standby time is about 120 hours ,The charging time is about 60 minutes

1. 1* Bluetooth Headphones

2. 1*Charging Cable

3. 1*User Manua 

4.