Zeadio ZP-AR122 G Shape Earpiece Headset with PTT Microphone for 1 PIN HYT Hytera Radio TC1688 TC310 TC320 TC-1688 TC-310 TC-320 Etc. Brand: Zeadio. Model: ZP-AR122. Excellent for use in police, military, nightclubs, bars, paintball, security,restaurants, hotels, bouncer, warehouses, and noisy environments. Durable and thick cable, designed for tough environment This headset is for the HYT radios and many more that require standard 1 Pin For customer service, Zeadio guides or warranty, please feel free to contact seller Zeadio or visit Zeadio official website: http://www.Zeadio.com