Specifications:
Made of durable materials, sturdy action throat mic with vibration sensors, inline VOX-PTT switch, PU cable, metal 1 pin audio plug, 360 degree swivel metal collar clip, soft silicone air tube and earbud
Rotatable lapel clip at the back side of VOX-PTT switch block
What's in package: 1 x earpiece, 1 x bonus plastic earplug
Compatible with Garmin Rino GPS 2 Way Radios:
Rino 110, 120, 130
Rino 520, 520HCx, 530, 530HCx
Rino 610, 650, 650t, 655, 655t
Rino 700, 700t, 750, 755t
And most other Garmin walkie talkie with 2.5mm 1 pin jack
Using Tips:
The throat mic part is not adjustable, but flexible.
The microphone captures the vibrations from your throat, so you need to ensure the sensor close to your neck. It transmits directly from throat and it is not sensitive to the background noise which can make your communication clearer.
The best way for the earpieces to work is to be opposite sides of the throat, the mic part sitting on the side of the neck will work.