Heil Sound HTH-I Heil Handi Talkie Headset for Icom Handheld Radios Works with 2-pin Icom HTs Redesigned to work with the ID-51A Single-sided, lightweight headset designed for use with popular handheld transceivers Provides hands free and discreet two-way communication It features a left or right ear adaptable earpiece and an in-line Push-to-Talk switch