The Grace Digital Eco Extreme all terrain MP3 speaker provides a good quality sound and a necessary protection for your iPod, iPhone, music phones and MP3 players. The device comes with a built-in 3-inch full range front firing speaker and a universal 3.5mm audio jack. This portable speaker also has a rubberized protective shell and a high impact shockproof exterior. In addition, the Eco Extreme also has a 2-inch detachable carabiner, making it ideal to clip to a beach bag or backpack for easy transportation. The Grace Digital Eco Extreme all terrain MP3 speaker is priced at $49.99 a pop.