The high performance NoiseHush NX26 features neodymium magnet drivers and advanced engineering to deliver deeper bass, lower distortion and wider dynamic range. The rugged, lightweight headphones offer comfortable listening for hours on end and can be used for both mobile sources and home (mini) hi-fi systems. Special Features: Adjustable Headband for perfect fit. Over-the-Ear design isolates external noise. Soft-cushion design for ultra comfort. High Fidelity Sound for extreme clarity with precise bass. Microphone for hands-free calling, video chats and memo recording options. Function Button to easily switch between listening to music and answering calls. Tangle-free Cable. Neodymium Magnet Drivers. Specifications: Driver Unit: 40 mm. Output Power: 30mw RMS. Speaker Frequency Response: 20HZ-20kHz. Sensitivity: -42 +/- 3dB. Mic Frequency Response: 100-20kHz. Cable Length: 5.7 feet. Audio Connection: 3.5mm Stereo Jack Socket.