For its newsletter subscribers only, newegg offers the Sennheiser CX 200 Earbud Stereo Headphones, model no. 502544, for $39.99. Coupon code "EMCNCHF95" cuts them to $17.99. With free shipping, that's the lowest total price we could find by $5. Features include a 3.5mm plug, noise isolation, frequency response of 20Hz to 20kHz, and more. Deal ends July 30.