• Standard vertical shutter button with on/off switch on the grip and infrared remote sensor.

• Built-in storage compartment for Canon 50D, 40D, 30D, 20D battery door and tripod mounting thread.

• Holds one or two Canon 1390mAh Li-Ion batteries, you don't need to take the grip off.

• Included one AA battery adapter allows you to use 6 AA size batteries(High Power Battery Only)

LCD Timer Vertical Battery Grip for Canon 50D, 40D, 30D, 20D makes photographing in a vertical position much easier and provides a better handling of your camera especially when you are using heavy lenses. The battery grip provides more energy for your camera than a normal storage battery would. The battery compartment holds either two lithium batteries (original or third-party manufacturer) or a battery magazine for six AA NiMh batteries. It is also equipped with a vertical-grip shutter button, AE lock/FE lock button, and AF point selector button.