Synchronize with Music: As the beautiful melody starts playing, the LED lights will flash quickly with the rhythm of the music. Whether you want to start a crazy party, indulge in exciting and intense computer games, or create romance. | Smart APP Free DIY: The LED letter lights can be freely controlled by remote control or smart APP, with hundreds of different colors and rhythmic light effects. The LED lights are colorful, durable, and have adjustable brightness. You can also DIY your own unique colors and combinations to suit the atmosphere of the room | Best Decoration: 26 letters and 2 symbols provide unlimited possibilities for DIY creation. Beautiful home decoration and dormitory decoration for girls or boys. Use the included self-adhesive tape and hole screws to spell out any name or phrase with these beautiful light-up letters, such as "BAR" on the wine rack, "LOVE" at the wedding, or add initials in children's bedrooms, homes, kitchens, walls, desks, playrooms, etc. Perfect for Christmas, Halloween, parties, etc. | Specifications: Size (W x H x D): 6.17" x 5.9" x 1" Made of high-quality materials, environmentally friendly and non-toxic, no batteries required, can be powered by a USB power bank or socket, no additional charging required for long-lasting light. There is a hanging hole on the back, which can be displayed alone or hung on the wall. | Perfect after-sales Service: Send the warmest blessings to your family or children, and enjoy the charm of light and shadow in the dark! We believe in our products, and so do our customers. If you are not satisfied, we will provide you with the most complete 24-hour online customer support and unconditional return and exchange service.