updated 02:40 pm EDT, Wed October 25, 2006
Solar Headphone Radio
While solar-powered radios are common realities, Soltronix has just recently introduced a receiver that no longer requires an external solar cell. Its solar headphone radio mounts thin, flexible solar panels in the headband itself, recharging the battery without the risk of obstructing sunlight or the extra bulk of an external receiver. A single hour of sunlight can provide one to three hours of radio, Soltronix claims, and the device can build its charge even while it plays. A full charge lasts an estimated 20 hours; should the solar power deplete itself, a rechargeable AAA-sized NiMH battery can provide additional listening time. Select Solar and other British online stores can export the radio for £25 ($47 US).