Replacement for the Following Battery Model/Part Numbers: CP1254-A3. Intended for/Compatible with the Following Wireless Earphones Models: Beats by Dr. Dre Powerbeats Pro, Beats Powerbeats Pro, MV6Y2LL/A, MV722LL/A, MXY72LL/A, MXY82LL/A, MXY92LL/A, MXYA2LL/A, MY592LL/A. 3.7V 55mAh 0.2Wh Lithium-ion Rechargeable Battery Pack. Includes Free Installation Tools (Soldering Iron Not Included). 1 Year Replacement Warranty. MPF Products is a Registered Trademark. MPF Products 55mAh CP1254-A3 Battery Replacement Compatible with Beats by Dr. Dre Powerbeats Pro Totally Wireless Bluetooth Earphones.