Amazon offers its Amazon Prime members the Klipsch Image S3 In-Ear High Performance Headphones in Galaxy Green for $20.74 with free shipping. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $5.58.) That's $3 under our mention from two weeks ago and the lowest total price we could find by $18. Features include a 12Hz to 18kHz frequency response, 106dB sensitivity, and more.

Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months.