Bluetooth Earbuds

Driver type: dynamic
Driver unit: dia. 10mm
Frequency range: 20-20000Hz
Sensitivity: 99dB +/-3dB
Impedance: 32 ohms
Bluetooth version: 4.2
Bluetooth chipset supplier: Buildwin
Power supply: Li-ion battery 60mAh
Charge type: micro USB
Receiver distance: ≤10 meters
Charging time: about 2 hours
Playing time: 3 hours
Standby time: 120 hours