Important compatibility information: Compatible with 2009-2018 BMW 2,3,5,6,7 series, X3, X4 smart key remote control Fob. Not compatible with 2019 and later versions.(Please check the product images to confirm compatibility)It is Original OEM Battery as Provided by Manufacturer, CR2450 -- Same batteries as provided by OEM original manufacturer in all (Smart Key) remote fobs. (PLEASE NOTE: Keyless entry remote fob not included)Pack Including: Two (2) Pieces CR2450 Remote Fob Battery and Opening/Pry Tool, Please check Amazon details Confirmed Fit to ensure that this is the correct battery for your remote.(Please note: Only two CR2450 remote Fob batteries and opening/prying tools are included. Key fob shell not included)Easy to Install,Avoid a Service Appointment for Battery Replacement and remote reprogramming is not required. Opening/Pry Tool Included to Assist with Battery Change. to help open the remote and to remove the battery without causing damage to your remote case.Recommended before or after seeing the "Key battery needs replacing" message on the car dashboard.Includes step-by-step installation videos - contains detailed instructional videos (via the link on the product packaging) that demonstrate the battery replacement process.