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1: Long press the multi-function buttons of both sides at the same time until the led flashing in red and bule alternately;
2: Then double-click the left earphone to automatically pair;
3: Turn on the phone bluetooth on your device and choose "i7S Tws" to connect;
4: Matching completed.
Note: This product does not have a retail package box! ! !
1. Bluetooth version: Updated to Bluetooth v5.0
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 (100% Gurantee,No virtual mark, Its full)
13. Standby time : 130 hours
14: Transmission distance: Out door strainght distance of 10meters
2 x Bluetooth Headphones(left and right earphones),
1 x Charging box
1 x Micro USB Charging Cable
1 x User Manual