1. Compatible with the Canon EOS 6D digital SLR camera 2. Provide comfortable and secure handling when shooting in the vertical position, including a secondary shutter release button, AF start button, AF point selection, AE lock/FE lock button and main dial. 3. Accept up to 2 LP-E6 batteries to effectively double the camera battery life. 4. AA battery holder allows you to use 6 AA batteries for added convenience 5. Features anti-slip rubber gripping and a securely locking battery chamber door. 6. Provides a camera battery door holder to store the camera battery chamber door when the grip is mounted. 7. Note: The batteries are not included.