Wireless noise cancelling over ear bluetooth headphones

Features:
Material ABS/Plastic
Color Black, Red, Blue,Yellow, White
BT Vision V4.1
Effective Range 10M
Battery Specification 3.7V/250mah
Battery Life 4-6 Hours
Sensitivity 108 ± 3 dB/mW (S.P.L at 1KHz ± 2%)
Frequency Response 20-20,000 Hz
Packing list
1*Bluetooth headphones