Sony's MDR-AS100W are their flagship sports/outdoor headphones, water resistant, and fit with a two-foot cord best used with arm-mounted MP3 players. $100 is a lot of money for a headset you plan to sweat on in your Tae Bo classes. So, Sony's spammed us with cool submodels, too, each with a unique flavor of ear-fitting yoga and price points unexplainably positioned from $20 to $100:

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See? Just don't ask me which is which.

Active Style Headphones Perfect for Sport and Fitness Enthusiasts Sony is also introducing a line of headphones that are designed to stay put when you're not. Whether on the treadmill, the track, or trekking through the mountains, the new Active Style collection features five headphones with a slim design styled with black silicone rubber with orange-red accents. In addition, all active style headphones have moisture-resistant features. The MDR-AS20J headphones fit around the outer ear with an earbud that sets inside the ear canal. The MDR-AS40EX headphones feature a convertible ear hanger so you can transform them from over-the-ear headphones to a traditional earbud style, offering users versatility and personal preference. The collection also will include more traditional headband style headphones (model MDR-AS100W), behind-the-neck earbud headphones (model MDR-AS50G) and behind-the neck open air headphones (model MDR-AS30G). The headphones will range in price from $20 to $100.

MDR-AS100W Over the Head Earbud Headphones Available in March for about $100 Lightweight, secure fitting headphones with single side cord for sports usage Short (2 foot) cord ideal for armband use; supplied extension cord (2 feet) for general use Water-resistant design Three sizes of earbuds (S, M, L)

MDR-AS50G Behind the Neck Earbud Headphones

Available in March for about $50

Lightweight spiral neck-band headphones for secure fit during activity

Short (2 foot) cord ideal for armband use; supplied extension cord (2 feet) for general use

Water-resistant design and washable carrying case

Three sizes of earbuds (S, M, L)

MDR-AS40EX Over the Ear Earbud Headphones

Available in March for about $40

Detachable ear hangers for stable fit

Short (2 foot) cord ideal for armband use; supplied extension cord (2 feet) for general use

Water-resistant design

Three sizes of earbuds (S, M, L)

MDR-AS30G Around the Neck Headphones

Available in March for about $30

Newly developed stability tip prevents movement of headphones

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