Overview： Brand new and high quality. Bubble water formula: 1 cup of water + 1/3 cup of detergent + half spoon sugar. This is safe bubble water formula. Unlike the bubble water sold outside, it has not pungent smell and non-toxic. Press the button, bubble gun will emit lights and music, and blow bubbles. Because the liquid and batteries are not allowed to send by air, please make the soap water and prepare the batteries by yourself. Thank you. Note: Due to hand measure, the size may have 1-4 cm error Due to Different Monitor, the color may have difference Bubble produced by bubble machine are Small but Many. 1.For the first time, please press the switch to empty the air in the pipe.When the bubbles enter the pipe, they will bubbles. 2.Batteries need enough electricity,If the battery is dead, there will be bubbles that can't come out. After use, the foam outlet should be wiped clean with a paper towel. If there is water outside the bubble machine, wipe it dry and remove the battery, otherwise the bubble will be short-circuited and it will not be able to play in the future. Specification： Product material: ABS environmental protection plastic Age: 3 years old and above Product accessories: 120ML bottle with bubble water Required batteries: 4 1.5A (VV) batteries Color box size: 17 * 12 * 16. 5CM Color: monochrome Package Content： 1x Brain game