1. Bluetooth version: V5.1
2. Bluetooth protocol: A2DP, AVRCP, HFP
3. Effective distance: about 10m
4. Power supply: lithium battery included
5. Operating time: about 7h ( earphone ) + 21h ( charging case )
6. Input: 5V 200mA ( earphone ) / 5V 1A ( charging box )
7. Frequency range: 20Hz-20KHz
8. Audio decoding: SBC
9. Packing list: charging case x 1, earphones x 2, Type-C charging cable x 1, manual x 1

Features:
1. One key to turn on the game mode, audio and video synchronization, fast and stable transmission, lower latency, three clicks on the left ear to turn on the game mode
2. Bluetooth 5.1 chip, fast connection speed, efficient data transfer rate, stable performance
3. With the support of call noise reduction algorithm, it can realize the separation of call sound and other sounds, so that you can communicate clearly even in noisy places
4. 13mm large size monoblock carefully tuned, distinctive levels, reduce distortion, restore the details of music, better resolution
5. Seamless switching between single and double-ear use, pick up one at random to listen, stable transmission is not easy to break the connection
6. Charging box oval design, pebble grip, mini portable
7. Semi-in-ear type is not picky about the ear, wearing more stable, zero pressure more comfortable
8. IP54 level dustproof and waterproof, no fear of sweating
9. Fingertip tap operation, you can complete the game mode, music switching call answering and other functions