[Easy to clean] the button 2 times to the blender. If you see the button flashing and the blender does not turn on, check that the top of the bottle is tight and that the blade is not stuck. This mini blender is waterproof and very easy to clean. [USB Rechargeable and Portable]The personal blender has a built-in high-capacity battery that can be easily from a computer or other USB power source. The blender can be fully in 3 hours, providing up to 25 cups of drinks. With a capacity of 16 ounces (about 453.6 grams), can fit in any bag. Easy to carry to work, travel, kitchen, gym and other occasions. [POWERFUL & EFFECTIVE]Portable blender extraction cup with 6 304 stainless steel blades, 150W rated motor and 7.4 rated voltage. With a high rotation rate of about 20,000 times per minute, it only takes 40 seconds to bring you fresh smoothies, protein/shakes, fresh juices, masks, , etc. Please cut fruits/vegetables into small pieces for better blending results. [Blending Advanced Tips]Charge the smoothie blender to full power after receiving it. Before blending, please make sure [lid is tightened] not to add too many ingredients (do not exceed the maximum line), then add some water or other buffer to the blending cup. After the blades to and mix, turn the mixer over when shaking the mixing jar. Proper handling prevent the blades from jamming and provide better mixing results.