VC-C77AM Vertical Grip Accessory. Ideal for shooting with the Sony SLT-A77V in vertical position, this gives you a firm grip on your camera with shutter button at your fingertip and controls conveniently positioned for comfortable shooting. The VG-C77AM also combines rugged design, dust and moisture resistant design for highly reliable under various conditions, and built-in compartment for two NP-FM500H InfoLITHIUM batteries (sold separately) with Stamina power of up to 1,060 shots.1 Readout shows in percentage about how much battery power remains and which battery is in use. In serious photography, this is a must for your Sony SLT-A77V.