Onyx Noise Cancelling HeadphonesPremium Bluetooth headphones that are designed for superior comfort and the ultimate crystal clear stereo sound reproduction. They are compatible with mobile devices that support Bluetooth, but also have AUX capability so they can be used with a cable. Onyxs active noise control (ANC) function reduces unwanted ambient noise to improve sound quality when in a louder environment. The volume and track are able to be changed directly from the headphones