【Easy to Operate】：This automatic bubble machine is super easy and convenient to use. You just need to pour the bubble liquid into the liquid reservoir. Ensure the liquid level do not exceed the bubble reservoir. Then select the speed modes and bubbles will fly automatically.The tank capacity is 360ml which allows you play our bubble machine without frequently adding bubble solution. 【Portable Design】：Our professional bubble maker for kids and adults is designed with a handle. The handle of our black bubble machine is sturdy enough which making it easy for you to carry around you want. Thanks to the lightweight and compact size, making sure the machine doesn't take up more of your space. So this bubble machine is very convenient to take along and place. 【Two Ways Powered】：The portable bubble blower for indoor and outdoor has two powered options. Because bubble launcher will come with a USB cable and is equipped with detachable battery compartment, you can use 6 C batteries or plug the USB cable into adapter to activate the machine working, which provide you with more convenience to have fun with kids. 【Premium Material & Safe Design】：Adjustable speeds portable bubble toys are made of ABS and PP material, which is long-lasting and sturdy enough. Nontoxic and environmentally friendly are necessary. Because of it's premium material, toddlers 1-3 can also use it. The bubble maker adopts safe design. Once touching the spinning wands, this bubble machine will automatically stop working. 【Suitable For Multiple Scenes】：This outdoor bubble toys are suitable for all ages and any occasions. Bubble maker can create many bubbles, like 3000 bubbles/min, which can bring more fun to people. Dreamy and beautiful atmosphere is super suitable for many occasions, such as wedding, parties, birthday, stages and etc.