Sentry 880CD Professional Series Digital Stereo Headphone Review Posted on March 31, 2018June 25, 2018 by FancyPygmy This fits your . Enter your model number to make sure this fits. Full-Size Studio-Style Headphone Driver Impedance: 32 Ohms Frequency Response: 20-20,000MHz 12 Foot Cord With 3.5mm Stereo Plug Full-Size Studio-Style Headphone Perfect for CD/MP3/MD/DVD Soft Ear Pads & Headband HI-FI Adapter Plug Driver Impedance: 32 Ohms Rotary Volume Control 12 Foot Cord with 3.5mm Stereo Plug Driver Impedance: 32 Ohms Frequency Response: 20-20,000MHz Powerful 50mm Neodymium Magnets Super-Thin Mylar Diaphragms