Features: 1. The Bluetooth mobile APP can change the word, and the content can be changed at any time. 2.USB power supply, in addition to the car window, can also be displayed in shops and commodity windows. 3. Multi-language, support English, French, Korean, Japanese and other languages. 4. Suction cup installation, can be fixed on smooth glass, marble, wall, not suitable for rough, non-smooth wall. 5. A variety of display modes, scrolling, still, up and down, left and right, etc. Audience: Adults over 18 years old Usage scenarios: shop windows, car glass windows Use function: LED display, Bluetooth word change, multiple languages, suction cup installation, USB power supply, multiple display modes Product parameters: Editing method: mobile phone Bluetooth APP Product size: 23*5*1cm Product color: red/green/blue/orange Power supply: USB cable Voltage: 5V Installation method: 2 suction cups Display mode: various Language: Support multiple languages Product List: 1*LED light bar 1*USB cable 1*English manual