This customizable BT LED hat is ideal for creating a romantic or a fun mood on many occasions. You can customize the pictures showed on the hat surfaces via APP. It is great for Halloween parties, family parties, stage performance, graduation parties, etc. Features: Customizable BT LED hat: You can customize the pictures (20 Pictures and Animation interface contains 22 animations, 1 animation loop) showed on the hat surfaces. Connect the hat and APP via BT to customize the pattern you want. Premium Material: High-quality cotton makes it, cozy and comfortable for the perfect fit. It also suits daily activities. DIY Image: Select color, then light the lamp beads on the hat, draw any patterns you want, and display them in real-time. DIY images saved are also editable. Music Rhythm Mode: In rhythm mode, the hat can recognize other external sounds to accomplish various lighting effects. Widely Used: The LED hat is ideal for creating a romantic or a fun mood on many occasions, such as Halloween parties, family parties, stage performance, graduation parties. It is a creative gift for your family and friend. After-sales Service Guarantee: Any problem, please contact our store without hesitation. Honor to serve you! Specifications: Item name: LED Hat Main material: Cotton Hat color: Black LED bead: 2121RGB Input voltage/current: 5V / 1A Charging time: 3h Use time: 5h Battery: 3.7 450mAh Li-polymer battery (included) Item size:26*17.5*13cm Package Information: Package size: 11 * 9 * 3.5cm Package weight: 148g General box packing. Note: * There could be a few deviations due to manual measurement or slight color difference owing to photographing condition. Thank you for your understanding. Packing List: 1 * Hat 1 * USB Cable 1 * User Manual