● Bluetooth Earphone
● Bluetooth version V5.0+EDR
● Transmission distance: up to 10m
● Support: A2DPAVCTPHFP
● Frequency range: 2.402~2.480GHz
● Speaker frequency: 20~20K Hz
● Speaker sensitivity: 100dB + 3dB at 1KHz
● Impedance: 16 Ohms±10%
● Microphone sensitivity: -58+3dB
● Microphone directionality: Multidirectional design
● Microphone frequency response: 100-10000HZ
● Rated power: 15mW
● Charging voltage: DC 5V
● Charging time: approximately 1-2 hours
● Woking time: up to 15H ( earphones up to 5H + Docking Station up to 10H)
● Standby time: approximately 300 hours
● Docking Station
● Input voltage: DC 5V
● Overcharge, over-discharge protection
● Accessories: USB cable 1pcs