Features: Quality plastic, the electric headwear is extremely lightweight and can be worn for a long time without any burden. Suitable for various occasions such as daily commuting, sports and fitness, it keeps you in a comfortable and is a must-have item for trendsetters. Built-in motor can automatically adjust the tightness, ensuring that it fits the head shape every time it is worn. Suitable for users with different head circumferences, especially lively and active children, providing a better wearing experience. Simple and modern design charm is suitable for pairing with various clothing, whether it is casual wear or formal occasions, it can be easily controlled. The compact and lightweight characteristics make it great for travel, as it does not take up space when placed in a bag. Specifications: Component: plastic Size: Suitable for head circumference 55-60cm/21.65-23.62inch Attribute: black Technical parameters: built-in motor, USB charging port Usage scenarios: daily wear | outdoor activities | party wear Practicality: It can help organize hairstyles and provide a slight massage function, suitable for users of all ages. Package Includes: 1Pc Electric Hair Hoop note: Just include hair hoop, without plush ears. Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.