Amazon offers the Sennheiser CX 400 II Earbuds for $26.88 with free shipping. That's $63 off and the lowest total price we've seen for these headphones. (The few stores that have it in-stock charge $80 or more.) Optimized for MP3, iPod, iPhone, and portable gaming systems, these earbuds feature a 17Hz to 22kHz frequency response, in-line volume control, and more.