Av-jefes Cm518h-ta3f Headband Headset Microphone for Akg, Gemini, Samson Elastic Headband Headset Microphone for AKG (Headband is removable) Impedance: 600 ohm with Cord Length: 5 feet Comfortably for Aerobic, Zumba, Yoga, Fitness and Dance Compatible with Audio2000s system using 3-pin connector such as: AWM6528, AWM6952 & AWM6035 RoHs and REACH Complied. Without Pb, Hg, Cd, Cr6+, PBB, PBDE.