Product details of FASTER S5 ANC Over-Ear Wireless Headphones with Active Noise Canceling Feature Plus Hi-Res Audio Stereo and Deep Bass Sound 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 Specifications of FASTER S5 ANC Over-Ear Wireless Headphones with Active Noise Canceling Feature Plus Hi-Res Audio Stereo and Deep Bass Sound Brand Faster SKU 451009907_PK-2144474648 Cable Length Not Specified What’s in the box 1xHeadphone , 1xUser Manual , 1xCharging Cable VIEW MORE