Know what little kids love more than playing the Nintendo DS Lite? [[link]] Playing the DS Lite for long periods of time and holding it close to their face.
To prevent that, there this: the Health Control Game Timer. The ¥3,990 (US$40) doohickey has a timer with settings for 30 minutes, 60 minutes, 90 minutes and 120 minutes. [[link]] If a player goes over the allotted time, the DS switches off automatically.
There’s also a sensor that can gauge how close the player. If the player gets too close, an LED light illuminates, the DS Lite vibrates and makes a beeping noise.
The Health [[link]] Control Game Timer fits directly in the DS Lite’s Game Boy Advance slot. Shame the DSi doesn’t have a GBA slot.
Game Timer [Datel Japan via Game Watch Impress]