I discovered that my new S-Mini flashlight jams my wireless computer/heart-rate monitor despite having no wires at all. I moved them about 1ft apart as a stop-gap measure, but decided this was A Sign indicating I should finally get a GPS and an ANT+ heart-rate transmitter, because I train on all my bikes after dark as the need arises. When life hands you lemons... sell the lemons on eBay and buy cookies.

My old NiteRider HID also was a jammer.