OTTO Engineering

Revo NC2™ Noise Canceling with coiled cord, 3.5mm earphone jack

Evolution with coiled cord, volume control, 2.5mm earphone jack

COMMERCIAL SURVEILLANCE KITS E1-1W2HX131 OTTO LOC 1 Wire Kit with in-line PTT and Mic (requires earpiece pg 15) Black

Adjustable Rotating Ear Hanger with in-line PTT and Mic, black

Fixed Ear Hanger with in-line PTT and Mic, black

1 Wire Earphone Kit with in-line PTT and Mic, with quick disconnect acoustic tube, black

3 Wire Mini Lapel Microphone Kit, black

2 Wire Kit, black

Fixed Ear Hanger with in-line PTT and Mic, black

COMMERCIAL SPEAKER MICROPHONES E2-RE2HS5111 Revo NC1 Noise Canceling with coiled cord, 3.5mm earphone jack

ClearTrak NRX Behind-the-head Headset with earcup PTT

Cleartrak NRX Over-the-head Headset with earcup PTT