Zeadio ZP-AMC019 Shoulder Remote Speaker 3.5mm headphone jack Mic Microphone for 1 PIN Yaesu Vertex Radio HX471 FT-250R FT-270R FT-277R VXA-700 VXA-710 VXA-300 VX-127 VX-170 VX-6R VX-7E VX-7R etc. Brand: Zeadio. Model: ZP-AMC019. Talk and listen without ever holding your radio. Built-in PTT and microphone is very handy. Push-to-talk button and microphone are located on the accessory for quick and easy use. Great for noisy AND quiet areas because speaker is located right near user's ear. Radio can be placed anywhere with Microphone/Speaker conveniently located - wear it on your collar to keep the volume near your ear For customer service, Zeadio guides or warranty, please feel free to contact seller Zeadio or visit Zeadio official website: http://www.Zeadio.com