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4. SUN headset by Iqua
SUN headset by Iqua
Price: $80

This solar-powered Bluetooth headset converts light into power, which means you won't have to worry about recharging the battery every night. While it's a bit large (due to the built-in mini solar panel), the eco-friendly SUN claims to get nine hours of talk time.

NEXT: MBW-150 watch from Sony Ericsson (Music Edition)
Last updated May 27 2008: 7:45 AM ET
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