MP4Nation via Amazon offers Prime members the Brainwavz S1 Noise-Isolating Earphones for $29.50. The price drops at checkout to $26.55. Plus, Prime members qualify for free shipping. (Non-Prime members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $6.15.) That's $2 under our August mention and the lowest total price we've seen. Features include a 20Hz to 20KHz frequency response, flat cable, and six pairs of silicone tips.