Battery Grip Bundle F/ Nikon D800, D810: Includes MB-D12 Replacement Grip, 2-Pk EN-EL15 Long-Life Batteries, UltraPro Accessory Bundle COMPATIBLE: The UltraPro Battery Grip is equivalent to the Nikon MB-D12 Grip and compatible with Nikon D800 and D810 DSLR Cameras. VERTICAL PERFORMANCE: Improve function and comfort for shooting in vertical orientation with the non-slip grip, built-in secondary shutter, command dials, and more. LONG-LIFE: Double your shooting time with two high-capacity, rechargeable lithium ION no-memory EN-EL 15 batteries or use 8 AA batteries in the grip at a time. ACCESSORIES: Rotate EN-EL 15 batteries, shoot with the included remote, and clean with the bonus microfiber cloth! GUARNTEED: Backed by FantaSales 30-Day 100% Satisfaction Guarantee. No-Hassle Returns and Refunds.