i7s tws Wireless Headphones Bluetooth 5.0 Earphones sport Earbuds Headset With Mic Charging box Headphones For all smartphones

Features:
1. listening to the song correct; support songs and call;
2. remind call number; the last call back; all intelligent Chinese and English voice prompts; boot; pair; shut down the phone power will be low voice prompts;
3. Power capacity will show on your Iphone; you can see the power situation anytime; do not worry about the electricity ; make your life without worry;
4. One to two connections; can be connected to two mobile phones at the same time
5. Bluetooth headset connected to the phone after the shutdown  ; and then open the Bluetooth headset will connect back to the phone  automatically  ; more convenient;
6. Intelligent compatibility: support all Bluetooth mobile phone; tablet; notebook; singing it; QQ music; movies; etc.; universal all mobile phone

Specification:
1. Driver: 15mm
2. Impedance: 32 OHM
3. Bluetooth version: Bluetooth v5.0 + EDR
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)
14. Talk time is about 2-3 hours
15. music time about 1.5-2 hours
16. Standby time is about 100 hours

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