Rechargeable lithium-ion polymer battery Offers hours of music playback on a full charge.

The auto-off feature automatically shuts off the headphones when not in use to conserves battery life.

NXTGen Active Noise Canceling technology Minimizes ambient noise with the push of a button for immersive sound.

40mm drivers and TruNote Auto Sound Calibration Automatically calibrates output for optimal audio performance.

Dynamic frequency response range : 10-22kHz

Driver sensitivity : 102dB/1kHz

Maximum SPL : 117dB

Rated power input : 30mW