LED Panel For T-shirts Following are the main features of LED Panel For T-shirts 1 Dot-matrix 7 21dots 2 Support Englareh input 3 Letters numbers and simple images stored 4 Hold up 6 messages in memory 1-5 support text message 6 support time dareplay Up to 1500 characters can be dareplayed 5 9 dareplay effect such as left shift right shift up shift down shift towards center flash from left flash out from right dareplay one by one from right to left one by one to quot right and left quot 6 3 kinds of sBest effects such as flash sBest a few second and without sBest 7 6 different speed and brightness 8 Support manual program with three onboard buttons 9 2pc of CR2032 battery more than 20 hours continuous battery life