BuyDig offers the Klipsch X4i In-Ear Headphones, model no. 1015882, for $149. Coupon code "ASEG" drops it to $99. With free shipping, that's the lowest total in-stock price we could find by $51. They feature balanced armature drivers, a frequency response range of 10Hz to 16kHz, and in-line music and voice controls compatible with select Apple products.