Newell Battery Grip BG-E20 for Canon. 

Newell BG-E20 is a robust, full-featured battery grip for Canon EOS 5D Mark IV. This device allows a better grip improves comfort when taking pictures in vertical and extends the work without having to replace the batteries in the camera.

Additional power supplyGrip has two basic functions. One of them is the long life of the camera, by providing an additional source of power. The battery packu can put additional Battery Pack LP-E6 or LP-E6N. This solution enables more intense and longer work without fear of losing power in the least expected moment.

Improved ergonomics The second important function is to improve grip comfort when shooting both vertically and horizontally. Specially designed shape and finishing with durable and pleasant to the touch rubber material provides a comfortable and secure grip, so that the camera feels right in your hand.