USB Rechargeable Battery: There are a built-in 1200mAh rechargeable 18650 lithium battery, no need to change the battery frequently. The handheld milk frother is very convenient to recharge by a computer, laptop, vehicle, power bank, USB Charger, Android cell phone adapter. With 6 hours full charge, the milk foamer forther can be used for 1 months or longer. 3-Speed Adjustable: Our milk frother rechargeable has three levels of speed to choose from: 3500RPM & 8500RPM & 13500RPM. The higher speed you choose, the less time you will spend, and the thicker foam you will create. 3 in 1 Function: The portable milk frother is equipped with 3 high-quality replaceable stainless steel whisk heads, which can satisfy your demands. It can be used to froth milk or cream, whisk eggs, mix protein powder with healthy drinks, blend drinks, chocolate beverages and so on. Easy to Use & Clean: Press the speed button to select the appropriate whisking speed. After using, put the stainless whisk in a glass of hot water or under the running water, then flush to clean it. The stainless steel electric milk frother can be quickly cleaned. High Quality Portable Milk Frother: With a upgraded motor, our hand-held foam maker is perfect for quickly creating foam within 15-20s for coffee, Lattes, , hot chocolates, matcha, cappuccino, or other drinks, powder as well as a good egg beater. Colour:black Material:ABS + electronic components + 304 stainless steel Package Contents: 1 * Host 1 * Double nipples 1 * Egg beater 1 * Stirring head 1 * USB data cable 1 * Rechargeable base 16 * Spray pattern 1 * With English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.