A light and sound signaling system that enables a speaker to send cues to audio visual technician using a wireless hand-held remote control or to remotely control presentation software via dual programmable USB ports. 
Includes one transmitter (4-button Part # PC-AS-4 is supplied standard). You may select an alternate transmitter below under "Item Options" or order an extra transmitter. Many customers choose to purchase one 4-button and an extra 2-button model.)
Also includes 12-volt external power supply, 2 USB cables and shipping/carrying case.
