UPGRADED VERSION- Portable professional bubble machine can produce 4000+ bubbles per minute. The bubble wand adopts a high-density gear design, so that each bubble wand can hold more bubble liquid, and with the high-speed rotating fan, it ensures that the bubble ring can blow more and larger bubbles at the same time. Two Speed ? Modes- There are two different speeds to choose from. You can switch the speed of bubble generation according to different scenarios. 3 Power Supply Modes- Equipped with USB data cable. The bubble machine can be connected and used through an adapter. You can also install 4 AA batteries or connect a power bank. This gives you maximum convenience and allows you to enjoy the bubble machine both indoors and outdoors. SAFE and DURABLE- Made of non-toxic and high-quality ABS with official CPC toy safety certification, it is harmless to children, pets and adults according to standard international toy requirements. The upgraded motor is made of high-thickness carbon fine sheet material, and its service life is more than 5 times that of the old motor. Light and Portable- Compared with other models, our design is smaller and lighter. The dimensions are 8.3 * 4.6 * 5.1 in and the weight is only 16oz. Children can also carry it more easily. High-Density Gear Design: The bubble ring adopts a high-density gear design, so that each bubble ring can hold more bubble liquid, and with the high-speed rotating fan, it ensures that the bubble ring can blow more and larger bubbles at the same time. Two Speed Modes It can be used for 30 minutes at low speed and need to add bubble liquid. High speed state can be used for 20 minutes. Two Speed Modes It can be used for 30 minutes at low speed and need to add bubble liquid. High speed state can be used for 20 minutes. Leak-proof Design The bottom adopts porous drainage design. If the machine is accidentally overturned, the liquid can flow out naturally through the drainage holes at the bottom of the machine, preventing the liquid from flowing into the machine and avoiding damage to the machine. 3 Power Supply Modes The bubble machine can be connected and used through an adapter. You can also install 4 AA batteries or connect a power bank. This gives you maximum convenience and allows you to enjoy the bubble machine both indoors and outdoors. Light and Portable The integrated ergonomic handle design, with high-quality ABS material, makes the product lightweight and portable. Use Instruction ( Manual Mode ) 1. Plug-in the usb cord or install 4* AA batteries(not include) 2. Pour bubble solutions into the container 3. Press the power button, once for turn on & low speed,twice for high speed,three for turn off 4. Pour off remaining solutions and dry the tank for next use Tips: 1. If you accidentally get soap into your eyes, rinse your eyes with water. 2. When the machine is working, do not put your fingers into the machine. 3. Turn off when the bubble solution is used up. 4. Do not leave unused liquid in the reservoir for extended periods of time. 5. The bubble machine should not be used continuously for more than 8 hours, preferably at a temperature of 40o-90oF (4o-32oC). Machine performan