Apie Direct via Amazon offers the Apie K1S In-Ear Headphones in Gray, White, or Black, model no. VJJB-K1S, for $14.99. Coupon code "ZV4B2GRI" cuts them to $6.35. Plus, Prime members receive free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $5.99.) That's $9 off list and the lowest total price we could find. They feature a frequency respons of 20Hz to 24kHz, 9.7mm drivers, and gold-plated 3.5mm plug.