Bluetooth Version: 5.3
Battery Type: Lithium
Case battery capacity: 500 mAh
Headphone battery capacity: 40 mAh
Operating time (calls/music): 8 hours
Battery charging time: 2 hours
Speaker size: Ø10 mm
Frequency range: 20-20000 Hz
Impedance: 32 Ω ± 15%
Input: Type-C
Colour:black