Designed for the Ride, the Cassette Gives you Big Performance with Less Bulk. It’s Supreme Sound with More Freedom. Removable Speakers to Jam with Friends- they are Adaptable for Headbands, Hoodies and Beanies. Has Mic3 which can Take/Make Calls, Volume Control, Play/Pause, and Track Control. Supreme Sound delivers Attacking Bass, Natural Vocals and Precision Highs. Highest-grade Materials for Unmatched Durability, Style. Impedance: 32 ohms. Sound Pressure Level: 106 dB (1mW/500Hz). THD: less than 0.1% (1mW/500Hz). Weight (without cable): approx. 120 g.