ENJOY Audience Response Systems are easy-to-use IR OR RF response systems that obtains immediate   feedback from every participant (up to 999 people) synchronously.

	RF technology LED status 4 radios channels More...		RF technology LCD display Multi-options More...
SRF217		SRF218
	IR technology Two-way ID Address Programmable More...		IR technology LCD display self-paced-response More...
SIR117		SIR118
	IR or RF Control course Laser pointer More...		IR or RF USB port or 232 port high speed More...
Master Remotes		Receivers