Energy-saving design, no battery draining problem The grip doubles the battery capacity of the camera by enabling two LP-E6 batteries to be used at the same time. It also improves the ergonomics of the camera Listing Included: 1 x DSTE Band Battery Socket. High Speed Sync Canon 5D Mark Iv at Dakota Bunce blog Infrared Remote Shutter Release Canon 5d Mark Ii Sample Images Canon EOS 5D Mark II Sample Photo Camera Battery Extender Original Manufacture Package 2 year warranty Works for Canon EOS 5D Mark IV 4 Digital Camera, Weight: Approx., 380 g (net weight) DSTE Pro BG-E20 Battery Grip and LP-E6 LP-E6N Battery Compatible with Canon EOS 5D Mark IV, 5D4 SLR Digital Camera, with Wireless Remote Control 1 x English/Chinese manual user. 2x DSTE Band Battery 1 x battery holder for two Li-ion batteries.