The UPB Stick-A-Switches that Steve mentioned are actually battery-less and wireless. The switches were very "snappy" (you had to press with a decent force and then they made a fairly noticeable snap sound). Read more about the battery-less aspect here http://en.wikipedia.org/wiki/EnOcean
Do these use the same technology as the Lightning Switch that was discussed here back in November of 2005? Or is this some new battery-less technology?
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