Love your MP3 player, but hate how the earbuds keep popping out while you're running or working out? Me too.

Sennheiser - the guys who make serious performance headphones and microphones - just launched a new Sport Line of portable 'phones, designed to stay in place while you sweat off last weekend's Buffalo wing binge.

Their MX 75 Sport model comes in a unique "twist-to-fit" design. When you put the earbud in, you twist the earpiece around until you find the most comfortable and secure position for the stabilizing pad that grips onto the ridges of your ear. It takes a little bit to find the right spot and get used to the feel, but once you do those bad boys twist in quick and are in there for the long haul.

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