Meike Vertical Camera Multi-power Battery Grip Pack For Sony Alpha SLT A77

Specifications  Power Sources: NP-FM500H DC7.2V  Power Switch: Camera's power switch  Control temperature: 0?Cto 40?C  Shooting capability: use two NP-FM500H battery, approx. 900pcs  Dimensions: approx. 16.5*13*9cm  Weight: 11.5 ounce Package Contents 1 x Meike Multi-power Battery Grip For Sony Alpha A77