Sonic Electronix cuts an extra 25% off headphones and earbuds via coupon code "25HEADPH", with prices starting from $15 after coupon. Even better, these items are all eligible for free shipping. Some best bets, each with prices after coupon:

• Sennheiser CX 215 Earbud Headphones in Orange for $15 (low by $12)
• AKG K514 MKII Lightweight Headband Headphones in White (pictured) for $59.97 (low by $40)