World Wide Stereo offers the 11.9-gram Klipsch Reference S4i Premium In-Ear Noise-Isolating Headphones, model no. 1013731, for $97. Coupon code "STIMULUS" cuts it to $67. With free shipping, that's the lowest total price we could find by $12. Features include four different-sized ear tips, storage case, clothing clip, microphone, remote, 10Hz to 19kHz frequency response, and more.

Also available are the 138.3-gram Klipsch Reference ONE Premium On-Ear Earphones, model no. 1013732, for $149. Coupon code "REFERENCE" cuts it to $88.88. With free shipping, that's the lowest total price we could find by $60. Features include voice control on select Apple products, adjustable headband, folding ear cups, microphone, remote, 16Hz to 23kHz frequency response, and more.