Equipped with a storage compartment for the camera battery door when BatteryGrip is in use. A sophisticated built-in Power Management System regulates the output to the camera. 1 or 2 Li-Ion batteries, even of different charge levels, can provide the necessary power, as well as AA Mignon batteries. Both rechargeable Ni-MH as well as alkaline batteries can be used with the included AA battery tray for a flexible backup solution when travelling. The HC-400D BatteryGrip comes with FREE Infra-red Remote Control. Allowing remote shooting with a range of up to 10m - 12m and reducing camera shake. HC-450D BatteryGrip will also work with Canon 400D and Canon 350D