Aircraft Maintenance Technology Product Guide

HS-4S Radio Headset

Earmark Inc., manufacturers of two-way radio communication systems for harsh, high-noise work environments, announces the availability of its latest radio headset, the HS-4S. The HS-4S offers implified controls that reduce training time and ensure reliable operation under adverse work conditions. 100-mW radio power transmission up to one-half mile in open field conditions. The HS-4S features:

• Rotary On/Off/Volume control
• Soft-touch, tactile PTT button for transmission awareness
• Powered by single, disposable 9-volt alkaline battery or a single, rechargeable 8.4-volt NiMH cell
• Close-mounted, Nickel-Titanium (NiTi) alloy antennas