1. Equipment: 7.4v 2600mAh rechargeable lithium ion battery for Canon NP-E6/E6N;
2. Function buttons: including auxiliary shutter release button, auto focus start button, auto focus point selection, AE lock/FE lock button, multi-function button and main button dial;
3. Compatibility: The battery grip is compatible with Canon EOS 5D mark Ⅲ/5DS/5DSR camera;
4. Portability: easy to carry when going out; fast charge and keep charged, no need to worry about insufficient power when shooting。