Audio-Technica - ATH-ANC50IS - QuietPoint® Noise-Cancelling Headphones

500mW maximum input power Reduces environmental noise up to 87% Clear and impactful audio On/off switch in earcup Works even after battery depletes Detachable 1.2m smartphone-compatible cable In-line mic and controls Included zippered pouch, airline adapter & AAA battery Speaker Driver: 40mm Frequency Response: 20 – 20,000 Hz Cable Length: Detachable 1.2 m (3.9') cable with in-line control/microphone and 3.5 mm (1/8") stereo mini-plugs Active Noise Reduction: Up to 18 dB Sensitivity: 97dB/mW (passive) and 104 dB/mW (active) Maximum Input Power: 500mW Battery: AAA (alkaline) Battery Life: Up to 40 hours, typical (alkaline) Connector: 3.5 mm (1/8") stereo mini-plug Maximum Input Power: 500mW Impedance: 33 ohms (passive) and 150 ohms (active)