Features: 100% brand new and high quality Ergonomic structure design for long wear. Secure screw cap connector. PTT equipped with metal clip, MIC can be fixed to the collar around, call is more flexible and reliable. Compatible Radios:for HYT : TC-500, TC-518, TC-500S, TC-580, TC-446S ,TC-600, TC-610,TC-620, TC-618 ,TC-700 , PD500. This is PTT Earphone Earpiece Microphone for HYT TC-500 TC-518 TC-580 TC-446S TC-600 TC-610 TC-620 TC-618 TC-700 two way radio. 2 pin, with locking screw. Package Includes: 1 x PTT Earpiece Headset Mic Specifications: Material:PVC Color:Black Length:145cm/57.09inches note: Due to manual measurement, please allow 1-2mm error. Please make sure you don't mind before ordering. Due to the difference of different monitors, the picture may not reflect the actual color of the commodity.