. Can display ASC characters and graphics . Can save up to 6 messages, each of which includes at most 99 characters or graphics. There are 8 display ways and 3 pause display modes.. There are 9 levels speed and 9 levels brightness available . A CG2023 battery . Easily input by hand Technical Specification Display Display Area: 48x28(mm) Matrix: 5x19 Number of LED: 144Feature - This product can display ASC characters and graphics and can save up to 6 messages, each of which includes at most 99 characters or graphics. When displaying messages, press DOWN key to switch messages- There are 8 display ways and 3 pause display modes. Roll the related key to display Speed/Brightness/Pause Time, with 9 levels settable- Able to renew the display information with the keysData communication Easily input by handPower Supply a CG2023 batteryLED color Red, Blue, Green, Yellow, White, Pink, Three Colors Mixed can be chosenOperation time About 20 hours