2 pin acoustic tube earpiece;former pin diameter of 3.5 mm and 2.5 mm in diameter after pin; double pin from 8 mm within and 11 mm center distance of 2 pin;can't compatible with any Motorola and Midland radios
The transparent tube connecting the ear bud protects your health from radio electromagnetic wave radiation
The earpiece fits snugly in your ear easily which keeps your conversations private
Excellent for use in police military nightclubs bars paintball security restaurants and noisy environments
Sensitive PTT allows you easy and convenient calls; the mic built in can pick up your voice easily