1. Bluetooth version: v4.2 & nbsp; & nbsp; & nbsp; 2. Used transmission power: 1.49mw & nbsp; & nbsp; 3. Transmission frequency: 2.48ghz
4. Transmission distance: 8-10 meters & nbsp;& nbsp; 5. Music playing time: about 5 hours & nbsp; & nbsp; 6. Charging time: 2-3 hours
7. Standby time: 240 hours & nbsp; & nbsp;& nbsp; 8. Supporting document formats: A2DP, AVRCP, HSP and HF
9. Battery material: 18650 & nbsp; & nbsp;& nbsp; 10. Battery: 3.7v/2000ma & nbsp; & nbsp; & nbsp;& nbsp; 11. Signal to noise ratio: -80db