World Wide Stereo takes 50% off select Sennheiser headphones via coupon code "DNEWS50". Plus, all include free shipping. That's tied with our mention from two days ago as the best such sale we've seen from World Wide Stereo on these items. The sale includes select earbud, circumaural, and behind-the-neck headphones.

A best bet is the Sennheiser PMX90 Stereo Headphones for $49.95 before the above coupon, or $24.97 after. With free shipping, that's the lowest price we could find by $4. They feature an ergonomic neckband, 3.5mm plug, 20Hz to 20kHz frequency response, and more.