Professional musicians and audio engineers rely on high-quality headphones in the studio to make sure they can hear every sonic detail. PreSonus® Eris HD10BT headphones provide studio-quality audio performance with the mobility and freedom of Bluetooth connectivity. Active Noise Canceling (ANC) reduces ambient sounds by up to 18 dB, so whether youre walking down a busy street, or sitting in the middle seat on an airplane, you can listen to your favorite music, podcasts, or binge-worthy TV series in vivid sonic fidelity.Features• 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 1/8" to 1/4" 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)SpecsType: Closed cup, circumauralDrivers: 40 mm, 16 ohmFrequency Response (Headphones): 20 Hz to 20 kHzFrequency Response (Microphone): 100 Hz to 10 kHzSensitivity (Headphones): ​96 dBSensitivity (ANC Microphone): -36 dBSensitivity (Call Microphone): -45 dBBluetooth Operating Range: 33 feet (10M)Playtime:• Up to 16 hours (ANC off)• Up to 8 hours (ANC on)Lithium Battery: 3.7V, 300mAHUser Controls: Power/pair/call answer, volume, ANC on/offConnections: 1/8" stereo audio input, micro USB charging portIncluded Accessories: Micro USB charging cable, 1/8" audio cable, 1/8" to 1/4" audio adapter, hardshell carrying case ​