Adorama offers the Shure SE315 In-Ear Headphones in Black or Clear, model no. SE315, for $169. Coupon code "1NOVSAVING" cuts that to $134.99. With free shipping, that's the lowest total price we could find by $34. The headphones feature dynamic microdrivers, a gold-plated 3.5mm plug, detachable cable, and 22Hz to 18.5kHz frequency response range.
Also available are the Shure SE215 In-Ear Headphones in Black or Clear, model no. SE215, for $89 before the above coupon, $70.99 after. With free shipping, that's the lowest total price we could find by $18, although we saw them for $21 less in April. Specs are as above, except for its 22Hz to 17.5kHz frequency response range.
There's a less expensive way, and then there's the way that works for you. The two may not be the same.