This beige 3-wire earpiece has a separate microphone and Push-to-Talk feature.
2-wire surveillance kit with extra loud earpiece
Extra loud receive-only earpiece with standard earphone (1-wire) for incoming communication in noisy environments.
This black, 3-wire earpiece has a separate microphone and Push-to-Talk feature.
This black, extra-loud (exceeds OHSA standards) earpiece has a combined microphone and Push-to-Talk feature.
3-Wire Surveillance Kit with Extra Loud Earpiece