Another wireless solution, this one from Sensory Software International, for connecting switches to the computer. Connect the receiver to the serial port (or USB port) of your computer. Then just plug your switch(es) into the transmitter(s). Ideal for wheelchair users - they no longer have to be physically connected to the computer! The receiver in the new Universal version has a rechargeable battery and two short cables fitted with 3.5mm jack plugs. This will allow the units to be used with any switch device, and not just computers running switch controlled software.