B&H Photo Video offers the Panasonic Drops 360° In-Ear Headphones
in Silver, model no. RP-HJX5-S, for $16.99
with free shipping
. That ties our mention from last December as the lowest total price we've seen. (Outside of the price below, they're a current low by $6.) They feature aluminum housings, 12mm dual magnet drivers, and a 5Hz to 25kHz frequency response range.
A close price: Panasonic via Newegg
offers them in Black/Blue for $17.99 with free shipping.