2 Cell Recharable Nickel Metal Hydride Batteries Quanity 2pk of 2. Fit Models: 5.0 Digital & 3 pair of memory foam eartips.

This battery does NOT work with 2.3MHz & 95kHz headsets. 

Installation Is Easy: Simply unscrew the three screws from the back of your headset. Take note of how the old battery is seated before you remove it. You will want to seat the new battery exactly the same way. Once the new battery is seated, screw the faceplate back into place.