Wireless Bluetooth Headphones
Bluetooth version - V5.0
Battery Capacity - 800mAh
Frequency response - 20Hz-20KHz
Operation frequency - 2 . 4G
Microphone Sensitivity : 42 + 3db (1kHz)
Charging currency - 200 mA
Full charging time - 6 hours
Working time : 60 hours (above 40 hours maximum volume)
TF Card slot
Color - Black