Milk Frother Beverage Mixing CupProduct Description: 1. The foaming time can be extended or shortened according to personal needs. 2. The glass jar body can be washed with water, but it is not advisable to use hard utensils to clean it to avoid scratches. Do not allow water to enter the motor cover, causing unnecessary damage! 3. This product requires 2 1. 5V batteries for power, but due to the limitation of cooperative express delivery, This store does not ship batteries, you need