Bluetooth APP Control: Download the app and connect via Bluetooth for access to numerous interesting patterns and animations, with constant updates. Flexible LED Screen: Lightweight and thin, this flexible display can be installed on hats, backpacks, shoes, cabinets, car windows, and more. Battery Powered: Features a built-in 3.7V 250mAh polymer lithium battery and includes a USB cable for easy charging anytime, anywhere. DIY Design Function: Create custom text, graffiti, and animations to match your style. Adjust brightness and display mode to your liking. Wide Application: Perfect for car advertising, shops, bars, game rooms, cycling, or holiday decorations for Christmas, Halloween, parties, birthdays, and more. Lamp Size: Approx. 170 x 70 mm / 6.7 x 2.8 in Weight: Approx. 60 g / 2.1 oz Built-in Battery: Polymer Lithium Battery 3.7V 250mAh (Included) Light Source: RGB Material: Electronic Components Charging Method: USB Micro Control: Key Switch Programming: Bluetooth APP Package Includes: 1 x LED Sign, 1 x User Manual, 1 x USB Cable Express yourself with this versatile and customizable LED sign!