HamiltonBuhl Deluxe Active Noise-Cancelling Headphones with Case compat_trrs Keep the adapter in a

Keep the adapter in a ventilated

With high-quality sound

your voice will be heard loud and clear

Dedicated volume controls for voice and siren

and classroom media

HamiltonBuhl Deluxe Active Noise-Cancelling Headphones with Case compat_trrs Keep the adapter in aThe HamiltonBuhl NCHBC1 headphones are specially designed to deliver superior noise cancellation by actively reducing harmful and annoying low frequency sounds in noisy environments. The deluxe, over ear cups with soft cushions deliver passive noise suppression as well. Together, the passive and active noise canceling technology creates a quiet, soothing environment to focus on the audio in your headphones or have some peace with no sound. The active