i7s Tws Wireless Headphones Bluetooth Earphones Earbuds Handsfree with Charging Box For Smart phone

Specification:
1. Bluetooth version: Bluetooth v4.2 Updated to 5.0 + EDR (Support two earphones to call)
2. Power level: CLASS 2 and Class 3
3. Output power: 30mW
4. Frequency response: 2.4-2.85GHz
5. Operating voltage range: 3.0V-5V
6. Mic: -42dB (with microphone)
7. With A2DP / AVRCP high quality stereo audio transmission and remote control protocol
8. Powerful noise de-noising circuit (active noise reduction)
9: Earphones battery: Polymer lithium battery 50mA
10.Charging time:0.5-1 hours
11. Talk time: 2-3 hours
12. Music time: 2-3 hours
13. Standby time: 130 hours
14: Transmission distance: Outdoor straight distance of 10-15 meters
Package Includes:
2 x Bluetooth Earphones(left and right earphones)
1 x Charging box
1 x Micro USB Charging Cable
1 x User Manual