If you need a companion during a long travel flight, check out NHC’s latest creation, “ECOLONG” (model number: LP-10). Recently released in Japan market, this portable MP3 player can playback your music collection for up to 85-hours non-stop! That’s more than 3 days in a row! If that doesn’t surprise you, what if you know that all this digital player required is just a single AAA battery. Wow!

Measures 78 x 36.6 x 18.5mm and weighs 34 grams, NHC EcoLong MP3 Player is currently available for 4,980 Yen with a 1GB of onboard storage.

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