The Original PEET Dryer has energy-efficient technology so that you can leave it plugged in all the time, 24 hours a day. It uses convection technology to push slightly warmed air through the air chamber to quickly and quietly dry your footwear or gear. The dryer easily plugs into any standard 110-120 volt U.S. household current and is available in 240-volt electrical configurations for New Zealand, United Kingdom and Europe