A number of years ago, I got an emergency / backup flashlight that attaches to the headset. It used two AAA batteries, you twisted the bezel (with included blue filter) to turn it on and off, and it had a mini compass on the backside (as part of the battery cover).
Looking to replace it or get parts....
I loaned out my headset with this attached and the battery cover / compass got lost......
Looking to replace it or get parts....
I loaned out my headset with this attached and the battery cover / compass got lost......