A. USB Charging: It comes with a built - in rechargeable battery and a USB port. After a full charge, it can work continuously for up to 72 hours. There's no need for frequent charging or battery purchase, which is more environmentally friendly. It's suitable for use at home, in the office, during camping or traveling. B. Powerful and Fast at Creating Fine Foam: This handheld device is equipped with an innovative motor. It's an essential handheld foam maker with good and long - lasting performance. C. The Upgraded High - Speed Motor is Powerful and Can Create Milk Froth in 20 Seconds. This electric whisk is a good choice for making milk froth drinks such as coffee, lattes, cappuccinos, matcha, hot chocolate and more. D. Easy to Operate and Clean: The three - gear buttons on the device are convenient to operate, with high/medium/low gears. The handle with an ergonomic design offers a comfortable grip. The simple three - gear switch combined with the motor makes it run with low noise. E. You can heat the milk first, then immerse the whisk into the cup to create more foam with this device. In addition, the device is durable and easy to clean. You can put the mixing head into the dishwasher or directly rinse the foamer head with clean water, but avoid immersing the whole device in water for cleaning. F. Color: Silver G. Material: Stainless Steel H. Package Contents: - 1 main unit - 3 mixing heads - 1 USB charging cable I. Only the above package contents are included, and other products are not. J. Note: Light and different displays may cause slight differences between the color of the item in the picture and the actual product. The allowable error for the size is +/- 1 - 3 cm.