1. SB Rechargeable: The electric whisk can hold a strong charge multiple times a day. You can charge it anywhere, anytime with your power bank, phone charger, computer, etc. Perfect for use at home, in the office, camping, or traveling. 2. Multiple Whisk Speeds: 3 speeds allow you to choose the right whisking speed to froth milk, coffee, latte, cappuccino, chocolate milk, tea. The low speed operates at 4000 RPM. You can mix supplements, protein shakes, and baby formulas without lumps. The medium speed operates at 8000 RPM. You can mix eggs, milk, coffee, or tea. The high speed operates at 13000 RPM. You can create creamy foam for coffee, latte, cappuccino, hot chocolate. 3. Quick to get creamy foam with great power: Equipped with an innovative and super premium motor, the indispensable portable frother offers durable and reliable performance. The upgraded high-speed motor has enough power to create milk foam in 20 seconds. It is a perfect frother for coffee, latte, cappuccino, matcha, hot chocolate, and other frothed milk. 4. Easy to install and use: There is a shaft inside the port, and you need to aim it well and keep the whisk straight when inserting it. You don't need to insert too much (you should still be able to see part of the spring outside), the spring can easily bend or stretch. One hand holds the whisk head, and the other hand holds the main body, then use moderate force to pull it horizontally. This handheld milk frother head is made of sturdy food-grade stainless steel for a long lifespan.