When using two batteries, the grip will automatically switch to the second battery if the first becomes depleted. Switching does not interrupt camera operation.
Built in Infrared remote control function and remaining power indicator
*In the Box:
1x Brand BG-E11 Battery Grip
1x Battery Holder for two Li-ion Battery
1x Battery Holder for six AA battery
2x Brand LP-E6 LP-E6N Battery
1x Infrared remote controller
1x User manual
Two years warranty
* Work For EOS 5D Mark III 5DS 5DSR SLR Digital Camera