Bluetooth Chip: Jelly 6983D4 Ultra low power consumption
Bluetooth version: 5.3
Support protocol: HSP/HFP/A2DP/AVRCP
Charging interface: Type-C
Input current: DC 5V
Output current: 3.7V/40mAh
Speaker: High quality titanium film moving coil
Frequency Response Range: 20Hz-20000Hz
Headphone Battery: 35mAh *2
Charging case battery capacity: polymer 300mAh with protective plate
Music playback: ,Single playback about 6-7 hours, with charging case use about 20 hours
Talking time: 6-7 hours
Charging time: 60 minutes
Wireless working range: ≤15M (no obstacles)