Bluetooth version: 5.3
Charge voltage:DC 5V
Sensitivity: 110 db
Frequency response: 20 hz - 16 KHZ
Impedance: 32 ohms
Battery capacity: 500mAh
Bluetooth distance: above 10M
Bluetooth starting frequency: 2402-2480MHz
Bluetooth protocol：A2DP HFP HSP AVRCP
Charging time: about 90 minutes
Music playing time: about 8-10 hours
Talk time: about 8-10 hours
Storage time: about 60 days