1. AC7006D8 main control chip 2. Bluetooth version: V5.0 3. Battery capacity: 300MAH 4. Working distance: about 10M 5. Working time of music mode: about 15H 6, horn diameter: 40M0M 7, horn sensitivity: 114 soil 3DB 8. MIC: 4013-42DB electret 9. Charging: TYPE C 11.Standby time: about 3500H 12. Charging time: about 1.5H