Professional headphones with active noise canceling & Bluetooth wireless technology. Studio sound wherever you go. Really nice studio headphones from PreSonus, available as part of the Eris range best known for studio monitors. Noise cancelling and optional wireless Bluetooth connection add versatility for on the go. Bluetooth 5.0 wireless for mobile use Plus wired connectivity for use with professional devices when wireless operation is prohibited or when battery life is low (cable and ⅛”- to-¼” adapter included) Active noise canceling (ANC) to reduce environmental noise Closed back over-ear design for superior isolation Easy-to-use level and track navigation controls 40 mm drivers for studio-quality sound reproduction Single-button call functionality with built-in microphone. Answer the phone without missing a beat. Up to 16 hours of continuous battery life 96 dB sensitivity 3 dB Balanced frequency response 20Hz - 20kHz Micro USB charging cable and hardshell carrying case included.