Coodio Over-the-Head Earpiece Headset [Swivel Boom Microphone] [Noise Cancelling] For Yaesu, Standard Horizon 2 Way Radio Walkie Talkie Coodio's Yaesu, Standard Horizon two way radio over-the-head earpiece headset is optimized for communications intensive environments in which personnel need to interact with customers while maintaining radio communications. Swivel boom noise cancelling microphone is reversible for use with either ear, provides all-day comfort, excellent durability, reliability and performance in low-profile environment. Comes with an inline PTT(Push To Talk) button that clips on your shirt, so you can use your radio device to communicate discreetly and easily, whether you're in security, retail or hospitality. Excellent for user in police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses, party, building construction, stage, studio, hunting, outdoor and noisy environments. Compatible with 1-Pin(4-contact threaded) Yaesu Standard Horizon portable handheld walkie talkies two way radios including Yaesu FT-270R, VX-6R, VX-7R, VX-120, VX-170, Standard Horizon HX870, HX400, HX380, HX290...