Headset Microphone, 3.5 mm plug, 39″ cord, cardioid condenser, 150 Hz - 18 kHz. Use with IC-2 interpreter console and PFM T36 transmitter. Replacement windscreen: WND 008. Replacement earpad: EAR 035. 6-1/4 x 6 x 2-1/8 inch 0.17 lbs.