The USB Speed Adjustable Milk Frother / Coffee Beater is a popular and versatile handheld kitchen gadget designed to quickly create foamy textures for beverages and other mixtures.1It is characterized by its convenience and multi-functionality.2Key Features and SpecificationsFeatureDescriptionPower SourceUSB Rechargeable (Cordless operation). Eliminates the need for disposable batteries and can be charged via a power bank, computer, or USB power adapter.Speed Control3-Speed Adjustable Settings (Low, Medium, High). This allows you to select the appropriate speed for different liquids and desired foam thickness. Common RPM ranges are often: Low (e.g., 4000-8000 RPM), Medium (e.g., 8300-10000 RPM), High (e.g., 12000 RPM and up).Multi-FunctionIt typically comes with multiple interchangeable whisk heads: a single or double spring whisk head for frothing milk/coffee, and sometimes a balloon whisk head for whipping eggs and cream.MaterialStainless Steel whisk heads (food-grade) and an ABS Plastic or ergonomic handle.UseFrothing milk (hot or cold) for lattes, cappuccinos, macchiatos, and hot chocolate. Beating eggs, mixing protein shakes, cocktails, matcha tea, and light sauces.DesignHandheld, Lightweight, and Compact for easy storage in a drawer or for travel.OperationOne-touch button operation, often starting on the low speed to prevent splashing.