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Looking for some eco-friendly accessories to supplement your iPod or PMP? ThinkSound offers incredible sounding headphones, such as Rain and TS01 ($75-$100) created with the smallest carbon-footprint possible. These eco-friendly series of heaphones are packaged with wooden housing, featuring passive noise isolation, PVC-free, tangle-resistant cable, dynamic driver, four sized silicon ear inserts and included cotton carrying pouch.