technical parameter-
Communication distance: more than 10 meters
Talk time: 4 hours
Standby time: 120 hours
Music time: 4 hours
Battery type: lithium polymer battery
Support protocol: HEP\HSP\A2D\AVRCP
Battery capacity: 55AM (rechargeable polymer battery capacity: 320AM)
Horn material: copper ring 8mm
Process material: ABS+plating+food silicone ear cap
Version: V5.0