This TSP-10 system includes lifetime warranty, and the TSC-10 includes 3-year warranty. Also, the transmitter in this system has 17 channels or frequencies and only 4 channels in the TSC-10 system. The receivers on this system have 20 selectable channels and only 1 programmable channel in the TSC-10 system. This system is ideal when you have multiple tour groups within close proximity and allows the participant to select the desired channel to listen to their tour guide. The TSC-10 is an economical option for locations when you have one group only.