Compucessory CCS 55230 Stereo Headphone Heavy-duty headset offers built-in rotary type volume control. 40mm drivers deliver dynamic stereo sound. Durable adjustable headband with soft padded vinyl ear cups provides long-wearing comfort. Headset includes an 8-1/2' long single entry cord and 3.5mm plug with 6.3mm adapter. Frequency response ranges from 20Hz to 20KHz.
