LED Name Badge (USB PC Kit)

Features: 
1) Can hold up to 8 messages in memory
2) Can display up to 250 characters per scrolling message
3) More than 30 hours continuous battery life
4) Resolution: 7 x 21 (with high quality LED type) 
5) Closed back design
6) DC input jack on board (for optional battery free operation)
7) Supports looping (can program the number of times a particular message 
    displays before Automatically moving to the next message in memory)
8) 10 different scroll speeds
9) RS232 model can also be available