Features:
This battery grip/holder is compatible with NIKON D800/800E Cameras. 
Features AF/On button， vertical shutter button， multi selector， main command dial， sub-command dial for shooting in a vertical position.
Comes with battery holders for 1 * EN-EL15 rechargeable battery or 8 * AA batteries， effectively increasing the camera operating time.
Has a tripod socket. 

Specifications:
Item type: Vertical battery grip
Compatible with: For Nikon D800 D800E
Replacement: For Nikon MB-D12
Power source: 1 * EN-EL15 or 8 * AA batteries(not included)
Material: ABS
Operating temperature: 0-40ºC (32-104ºF)
Item dimensions: 151 * 81 * 50mm/ 5.94 * 3.19 * 1.97in
Item weight: 270g/ 9.52ozs
Package dimensions: 15.5 * 12.6 * 9cm/ 6.10 * 4.96 * 3.54in
Package weight: 355g/ 12.52oz

Package Contents:
1 * Battery Grip for Nikon D800 D800E
2 * Battery Holders 
1 * User Manual