Description About Product The Nikon MB-D15 Multi Power Battery Pack is equipped with a shutter-release button, AE/AF lock button, multi selector, and main- and sub-command dials for improved operation when taking photographs with the camera vertically oriented.The MB-D15 Multi-Power Battery Pack can be powered either by six AA batteries (Alkaline or Ni-MH or Lithium), or EN-EL 15 rechargeable Li-ion batteries. To use the MB-D15 with AA batteries, use the MS-D14 AA Battery Holder. When using EN-EL15 batteries to power the MB-D15, use the MS-D14EN Battery Holder.Note! Batteries and adapter not includedFeatures: Compatible with the Nikon D7100 digital SLR cameraProvides comfortable and secure handling when shooting in the vertical position, including a secondary shutter release button, AE/AF lock button, multi-selector and two command dials.Accepts one EN-EL15 rechargeable Lithium-ion battery to effectively double the camera's battery life. The EN-EL15 battery sits in the included MS-D14EN Battery Holder when in the MB-D15.The included MS-D14 AA Battery Holder allows you to use 6 AA batteries for added convenienceThe MB-D15 can also be powered by the Nikon EH-5b AC Adapter (with EP-5B Power Connector).Features anti-slip rubber gripping and a securely locking battery chamber doorThe MB-D15 uses magnesium alloy equivalent to that for the D7100 body to achieve superior dust-prevention and weather-resistant performance. Product Feature Product Dimension: 6.3 x 7.9 x 5.1 inches Item Weiht : 1.0 Kg