about this project High-efficiency work: 3 adjustable speeds can provide efficient and low-noise mixing and foaming effects. Change the speed with the push of a button. Shut off between speed changes to prevent accidental power surges. The 3 speed is 8000 rpm at low speed, 10000 rpm at medium speed and 12000 rpm at high speed. The faster you choose, the less time it will take and the thicker the bubbles will be. Rechargeable design: no need to replace batteries, environmental protection, money saving, easy to carry. Built-in 1200mAH internal rechargeable battery with USB charging cable. Full charge for three hours at a time to meet your daily needs. It is convenient for you to use it at home, office, picnic camping and traveling. 3 Frothing Heads: Food-grade stainless steel mixing heads, allowing you to quickly prepare delicious desserts and drinks for your family and friends. 3 types of frothing heads allow you to perfectly stir milk, hot chocolate, smoothies, milkshakes, and jams like an advanced barista. Easy to disassemble and clean: When using, just insert the foam head into the card slot . To replace or remove, simply pull the mixing head outwards by hand. After use, just put one end of the blender stick into running water or soapy water, turn it with a light click, and press for 2-3 seconds to dry, then it can be easily cleaned, and then stored for next use.