Naturally, the different models will have their own features, but you will find that the core features of the pumps are very similar throughout. They all have a compressor pump, as well as sleeves for the legs. Often, these are disposable. The pump has a number of different settings as well, and the user will be able to calibrate it to their own needs. Setting up the system is typically quite simple, but it is a good idea to use the doctor’s guidelines when determining the proper pressure to use with the system.