The W-508 portable fogger requires less than 100 seconds to warm up and produces a steady, constant fog output as long as you need without any reheating interval time. The innovative smart-intelligence lies with the learning-mode of the wireless function. Each receiver can memorize up to 5 sets of frequencies and all receivers can receive signals from any registered transmitter. We have taken liberty in only including the wireless controller to each model, which comes standard. Specifications: