I recently purchased one of the last Rio remotes from the on-line store just before it was defunct. Oddly enough, my shiny new Rio remote just stopped working one day a few weeks ago. I was bummed but figured that if it had sat on a shelf long enough, the battery must be gone. I dug out my old Empeg remote (with the original one and a half year old battery it came with still in it) and made the swap...sure enough, that was it. Go figure eh?