Recently reengineered, our ANR battery box is smaller, has a belt clip, and  a new the auto shut-off  feature. The auto shut-off feature  will extend the battery life by automatically turning off after 4 minutes of inactivity. A flashing LED acts as a reminder that the power is on and changes color from green to yellow to red as the battery depletes.

Requires one Alkaline 9-volt battery.

Please note this battery box is included in the ANR kit.

Other items you may need:
HGU Earcups
ANR Kit
ANR Panel Mount Power Adapter

Helmets with ANR are designed to be used with ANR turned on. When ANR is turned off, the passive sound attenuation of the earcup will be less than if ANR had not been installed.