Precautions: Align the notches directly to plug and unplug, remember to pay attention to: 1. Do not insert it too hard, there will be a gap of about 2 mm after inserting it under normal circumstances. 2. Do not work continuously for more than 5 minutes. This kind of small egg beater is too small and cannot be installed with a fan to dissipate heat. It is not easy to use for a long time. Turn off and rest for tens of seconds every 5 minutes before restarting                                                   Description Features *USB Electric Coffee Milk Frother Foam Maker Egg Beater Whisk Mixer 3 Modes *This electric milk frother quickly turns your milk or cream into a smooth frothy foam *Widely used for stirring eggs, butters, milks, soup, sauce and more *Great for cafe shops, drink stores and restaurants to froth milk for latte art Specifications: *Charging mode: Charging-Red, Full-Green                                *Power:8W *Voltage: 4.5V-5.5V *Lithium battery capacity: 1200mAh * Position: Low -- Off -- Medium -- Off --- High --- Off Package Contents: 1*Host 1*Double-layer Whisk Head 1*Whisk Head for eggs 1*USB data cable