BT Version: V5.3 + EDR

Driver size:40vmm

Frequency Range:20Hz-20KHz

Wireless Range:Up to 15M

Playing time:up to 50 hours

Charging Time:2 hours

Noise canceling depth:22±3dB

Enjoy music and phone calls without interruption from outside sounds Lightweight, Comfortable Fit: Large, soft ear-pads rest 

around the entire ear, with soft density foam that ensures proper noise cancellation.