FASTER S5 ANC Over-Ear Wireless Headphones with Active Noise

Brand : Faster
Model No : S5 ANC
Bluetooth : 5.3
ANC Frequency Range: 20-600HZ
Battery Specification : 3.7V/500mAh
Working Frequency: 2.402GHZ-2.480GHz
Charging Voltage: 5V/1A
Charge Time : 2.5 Hours
Working Time (Only Bluetooth): about 50 h
Working Time (Only ANC): about 60h
Working Time (bluetooth+ANC): about 40h
Noise reduction value : -20 ± 3db