Mcoplus BG-DR750 Vertical Battery Grip Built-In 2.4G Wireless Control for Nikon D750 DSLR Camera as MB-D16 MK-DR750 Work with EN-EL15 Battery The Replacement MB-D16 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 in portrait orientation. buttons and custom buttons Built-in FSK 2.4G UP to 100M transmission distance Remote control It can use EN-EL15 battery or 6pcs AA/LR 6 Alkaline Battery(Battery not inclued) LCD display Timer remote function, setting the delay time, exposure time, interval and number of sheets photo