Receiver displays and checks dimmer levels; locates dimmers that are changing levels; records up to 30 scenes into snapshot memory; checks data links for errors; shows number of dimmers being sent by console; calculates the console's update rate Transmitter provides automatic "hands-free" console backup; plays back prerecorded scenes; edits scenes live on stage; fades and/or bumps dimmers levels up and down; assigns up to 30 dimmer groups; checks dimmers with variable intensity output; doesn't interfere with data link; scrolling menu text displays full names of each selection; large LED display; runs approx. 20 hours on 2 AA batteries.