AAAA battery? You can't buy this battery in radio shack. The only way to get this battery is if you take apart an 9v battery.

fleet farm has these batteries, battery stores do as well. I have this headset and it works, but it's silly to have a non rechargable headset. maybe good if you need one very rarely.

Ben's flogging ebay auctions now? If they're getting paid for views (doesn't seem like they ever list something they're not going to make money on if you look at it) this might be evidence of an interesting change at ebay...