Irrigation is started by simply pressing the start button on the handle one time to initiate the user-defined caloric protocol. An external water tank has capacity for approximately 14 irrigations, and eliminates the need for a drain in the examination room. The Aqua Stim is available world-wide and is supplied as a 110-130 V or 220-240 V model. 30°C cold and 44°C warm irrigations Use with the Interacoustics VNG software or as stand-alone LED illumination and start button in handle Eliminates the need for drain and faucet in examination room