Program up to all 4 cues to 1 button if you like. If you have the initiator connected, and the unit powered on, it will stay in ready mode at least 6 hours and will effectively fire when triggered remotely. This was tested on our shoot sites. The manufacture says with a new high-qulaity battery, it can be 3 days. The unit goes into a sleep mode after triggered. If you don't have the initiator connected, it will go into the sleep mode after 10 minutes.