Product size 7 * 17cm Bluetooth APP ControlDownload the APP,is controlled by a bluetooth-connected app,The APP built in a lot of interesting patterns and animations,APP will continue to update and upgrade DIY DesignYou can DIY design text,graffiti,animations at to suit your own creative you can also adjust the brightness and speed and display mode,achieve the display you want Flexible and PortableLight signs for car adopts 2121 model RGB beads, displaying clear and bright, so customers can easily notice your carThe LED matrix panel is light and thin,Flexible board design,can be bent and folded at will Option:1632 USBUSB powered ,The RGB LED signs with 3 M double sided tape, 4.4FT Super long USB cable,which can be attached to the Car window or other objects Option:1632 leather sheathBattery Powered,the LED sign is thin and light, flexible board design, 500mAh lithium battery directly supplies power,can run for 3-4 hours when charged. Type-C charging port Widely UseThe LED sign is widely used in car advertisement,shops, bars, restaurants,or Christmas,Halloween,party, birthday,new year etc