This grip is specially designed for the Nikon D810 and D800 DSLR cameras. It is equipped with an alternate shutter-release button, AE-ON button, main command dial, multi selector, and sub-command dial for comfortable access to the camera's controls while shooting in a vertical position. This power grip can hold one EN-EL15a rechargeable lithium-ion battery while a second is in the camera for more power and longer shooting times. Two Li-Ion battery trays are included. So you can pre-load the spare tray and change batteries ultra fast! An AA battery tray which uses 8 AA batteries in a pinch is also included.

• Dimensions: 6" x 2" x 3 1/8" (152 mm x 51 mm x 79 mm)
• Weight: 7.9 oz (223 g) (with one battery tray installed and no batteries installed)