3.5 mm stereo (TRS) external plug-in microphone + 1 TRS to TRRS adapter 7.5 inch / 19 centimeters; 3-conductor; Black steel flexible hose, bendable Detachable replacement condenser MIC; Removable foam cover Plug to any phone connector (AUX jack); Good for the car, conference meetings, teaching, training, online live broadcast, tourist Compatible with Turtle Beach Ear Force XO Four Stealth XO Three XO One Recon 150 50 50X 50P 60P 300 100 320 Z60 Stealth 400 420X 450 500P 520 and Plantronics Rig 400HX 400HS 400LX; Ear Force XO One, Stealth 400, Stealth 420X, Stealth 450, Stealth 500P, Stealth 520, Recon 100, Recon 320, and Z60;