KENMAX 2 Pin Finger PTT Ear Bone Vibration Conduction Headset Earpiece for Walkie Talkie Two Way CB Ham Radio Kenwood UV-N98 TK3230K TK-2400V16P NX-220 This Ear-Vibration 2-in-1 Speaker/Mic is designed for professional use. The performance of this new model is greatly improved comparing to the ordinary Ear-vibration 2-in-1 Speaker/Mic. Snug Fit Earpiece: The earpiece is designed in a way that fits your ear canal so that your voice could be transmitted via the speech vibrations. Since the speaker/mic is hidden in your ear canal, it is not sensitive to any background noise. This is exceptionally ideal for usage in high ambient environment such as driving, riding motorcycles and bicycles. Without a separate microphone that could be easily detected by people around you, this is also ideal for surveillance purposes and security at airports, casinos, crowd control at conventions and concerts, and other working environment requiring discreet communications. *Baofeng:BF-F8HPGT-3BF-F9V2+UV-6RUV-5XGT-1UV-5RV2+BF-997SUV-82CUV-5RI6+GT-5UV-5RTPUV-82XUV-8BF-UV530iUV-89UV-5RAX+BF-388ABF-F3+UV-A52BF-F9+TPA52E51Uv-5STD501UV-6DUV-5RTBF-235UV-8DUV-530IA-52UV-5ROBf-f8FD-108FD-118UV-6*Wouxun:KG-UV8D,KG-UV6D,KG-UV899,KG-819,KG-199,KG-IP55,KG-818*Quansheng:TG-6AUV-2Tg-k4at*Kenwood:TK-2300V4P,TK-3230,PKT-23K,TK-2400V4P,Tk-3402u16p,UV-N98,TK3230K,TK-2400V16P,NX-220*KIRISUN:PT5200