vertical-grip shutter button, command dial, AE lock/FE lock, and AF point selector button
Detailed introduction to Rebel Xti Battery Grip:
The C400N Pro is a battery grip for the CANON EOS 400D/350D/REBEL XT/XTi DSLR cameras, which can hold two battery packs NB-2LH or six size-AA batteries.
It is equipped with a vertical-grip shutter button, command dial, AE lock/FE lock, and AF point selector button to enable shooting in the same fashion as a horizontal grip.
The design is same as original.
Major Specifications
Type: C400N Pro
Power Source: (1) one or two NB-2LH battery packs
(2) 6 pieces AA-size batteries
Dimensions: 128.1x96.4x70.7mm
Weight: approx. 230g (not including battery packs )