Theefun TBM01 Upgraded Professional Wireless Remote Control Automatic Bubble Machine with High Output for Outdoor Or Indoor Use Dreamy Atmosphere Creator: Large high velocity fan makes bubbles rise quickly in the air to create dreamy and romantic atmosphere for kids birthday parties, stages, wedding etc Fast Bubble Generating: High performance rotor rotating at speed of 18-22 rpm helps generating thousands of bubbles per minute, running stably and reliably Two ways to use : The bubble machine can be used in manual or remote control way. Durable to Use: Constructed in rugged metal housing, it's wearable to use indoors and outdoors Portable Design: Equipped with a detachable handle and lightweight design, portable for convenient use