NoiseHush NS200-12074  3.5mm Sports Neckband Stereo Headphones, Black/Red Comfortable and Lightweight, Volume Control Advanced Neodymium Drivers, Enhanced Bass Response Sensitivity:1033dB, Impedance:32Ohm, Mic Frequency Response:100-20kHz Driver Unit:10mm, Output Power:15mw RMS, Frequency Response:20Hz-20KHz Compatible with all 3.5mm audio devices