List Price: $79.99 Deal Price: $37.99 You Save: $42.00 (53%)Anyone who's ever had the battery die in their cell phone, MP3 player, camera, or other electronic device knows what a pain it can be (and that it always seems to happen at the most inopportune moment). iSound's Portable Power is perfect for avoiding these annoyances: an ultra-portable backup battery that will charge multiple devices at once, without the need for an AC outlet or multiple backup batteries.Expires Nov 29, 2011

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