The NCOHHM-100a Open-face helmet headset and PTT system is an accessory for use with new Cobra pmr446 2-way radios .

• The HM-100a makes the use of a 2-way radio convenient and safe while riding a motorcycle, snowmobile, ATV, or any other activity in which a helmet is worn.
• Use the HM100a in conjunction with your 2-way radio for bike-to-bike, sled-to-sled, and ATV-to-ATV communications while riding.
• The HM-100a features a full-face helmet headset with 1 ultra-thin speaker and a boom microphone that attach quickly and easily inside the helmet.
• A weatherproof handlebar mount push-to-talk (PTT) switch puts control of the 2-way radio at your fingertips.
• Generous cable lengths and helpful accessories make installation easy and professional looking
• Compatible with COBRA MT100 MT200 MT250 MT300 MT550 MT750