1. The main control chip, AC7006D8 2. Version V5.0 of Bluetooth 3. 300MAH is the battery's capacity. 4. Working distance: roughly ten meters 5. Horn diameter: 40M0M 7, horn sensitivity: 114 soil 3DB, and music mode working time: approximately 15H 6. 8. MIC: electret 4013-42 9. Type C Charging Standby time: approximately 3500 hours 12. About 1.5 hours is the charging time.