The state-of-the-art Triton receiver makes setup simple. No driver installation allows for easy implementation. The radio frequency technology allows for a 200' range and does not need a "line of sight" with the ResponseCard keypads. The approximate size of a thumb drive, it doesn't require the hassle of cables and is easy to transport from room to room or class to class. Collect up to 1000 responses at once. For use with Triton Data Collection System only.