ป้ายชื่อ LED

1) Battery: Ours are rechargable, it can work at least 30 hours when full charge. The normal one can't be rechargable.
2) Button: Ours has the keybord just like the mobile phone, it can input and change message quickly and simply. The normal one only has 3 buttons on the back. Input and change message, turn on/off only can work with these 3 button. Very complex.

3) 8 grades of brightness
4) 8 grades of speed to show the message.
5) 2 messages upto 125 signs for each inside
6) can do invisible button, so there is much space on the surface to print the company logo. Please see the attached picture. Paste the button face on the surface...So there is much space for company logo.
7) The price is cheaper than the current LED badge in the market.