Power supplier: 1. USB adapter(5V2A),your mobile phone charger plug is OK,no matter which country you are. 2. or 4 AA size batteries 3. or Mobile power bank. Endless Fun with 20000+ Colorful Bubbles Per MinuteOur bubble machine can generate more than 20000+ bubbles per minute with 26 spinning wands, 2 fans & super built-in motor. Blow tons of bubbles faster, higher and farther even without wind,providing endless fun for kids.The LED lights also create a magical atmosphere at night. New Design & 3 Charging Methods Our bubble machine is very light, small and portable. It is equipped with an independently sealed bubble liquid bottle, which does not have the problem of water leakage like traditional semi-closed bubble machines.Children can play with bubbles in parks, yards, playgrounds, and lawns at any time.It can be powered in three ways: plug in with USB adapter , power bank(not included), 4 AA size batteries (not included), providing maximum convenience for indoor and outdoor use. Durable and SafeMade of durable ABS material, this kids bubble machine has been tested for child safety and complies with all US toy safety standards (CPSIA, CPC, ASTM). Our bubble machine is safe and reliable for kids, toddlers, pets, and adults.