Feature: 1. The RGB controller can be directly controlled by a mobile phone, and the remote distance can reach 15 meters without setting. 2. The total length of the product is about 50cm. A maximum of 10 meters of RGB LED strips can be connected. 3. The mobile app supports multi‑language display, and automatically converts between Chinese and English based on the phone language setting. 4. Animation effects, including various color gradients, various single‑color, double‑color, and color flashing. 5. The light changes with the rhythm of mobile phone music, suitable for weddings, bedrooms or parties. Specification: Item Type: LED Controller Material: ABS Color: As shown in the picture Product Total Length: Approx.50cm / 19.7in Input Interface: USB TYPE-A Input Voltage: 5V Working Temperature: -5 ~ 75℃ Maximum Power: 144W (24V/6A) Standby Mode: <0.5W How to Use: This mobile phone Bluetooth APP LED smart controller supports the use of mobile app to control light changes 1: Use the power supply of the USB interface, connect the mobile phone charger to the controller, and connect the LED strip according to the direction marked on the interface. 2: Connect the power, the controller will automatically turn on. 3: Scan the body with the QR code attached to download the mobile phone APP, turn on the bluetooth of the mobile phone to connect to the corresponding controller, and then you can use the mobile phone to control the connection. . Package List: 1 x LED Controller1 x Instruction Manual Note: 1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.