There are many uses for this little USB rechargeable LED badge. You can use it to display warnings to your room mate if he drinks your last beer. You could use it to remind your spouse of important items, like the game is on and you don’t want to be bothered.

The rechargeable battery is said to last for 12 hours and the battery recharges via your PC USB port. No wires make the badge easy to display wherever you like and up to 512 letters can be programmed into the memory. The badge had a magnetic back so it will stick to any metal object. You could even use it as a high tech and uber geeky name badge for the office or a trade show. The display can show both English and Japanese characters of up to eight cases. Pricing is set at 4580 yen and the item is available now.