CO-Z Portable Automatic Bubble Machine Maker for Wedding Party Kids Birthday Outdoor Use DURABLE & PORTABLE: Solid lightweight metal casing makes it convenient both or indoor and outdoor use. Adjustable handle makes it easy to relocate the machine. Great for kids parties, weddings, celebrations etc. EASY TO USE: Just fill up the machine with bubble solution, plug it in, press one single button, and off you go. ATTENTION: Professional bubble machine solution is required for the ultimate performance! Homemade bubble solution or soap water will NOT make a good performance in this machine! HIGH-EFFICIENCY: 15 rotations per minute to create hundreds of bubbles quickly with just a touch of a button; large chamber to hold 0.75 liter \ 0.2 gallon of bubble solution QUIET OPERATION: Our bubble machine operates with little noise, will not disturb your party MINIMAL MAINTENAINCE: Requires minimal care to maintain this bubble machine, easily and effectively maintained just with regular cleaning. Professional bubble machine solution is required for the ultimate performance! Homemade bubble solution or soap water will NOT make a good performance in this machine! Keep the air intake free from any blockage while operating. Do not use the machine for over 8 hours continuously. Recommended working temperature: 40  90F. It will not perform as well in very cold environment. Voltage: 110 V Output Distance: 6.6 feet Reservoir capacity: 0.75L / 0.2 Gal