1. Mobile phone Bluetooth APP control + button control, support to , graffiti, animation and other content. 2. Support the common languages in the world, English, Spanish, Portuguese, , Korean, Japanese, Russian, French, Italian. 3. USB plug power supply, use a 5V/2A charging to power the device, otherwise the device may not work properly. 4. Epoxy glue is waterproof and can be used outdoors. Any paste installation, no light leakage. Pay attention: 1. Do not use low-power USB power supplies such as computers and to power the device. 2. Do not bend or pull the display with force to prevent damage. 3. If the device does not work properly, replace the high-power charger. Colour:As shown :Electronic Size:S: 12 x 47cm Package Contents: 1 x LED pixel panel. 1 x Controller with USB plug Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.