For its newsletter subscribers only, newegg offers the Pioneer Sound Isolating Earphones in Black, model no. SE-NC31C-K, for $99.99. Coupon code "EMCYTZT1820" cuts it to $19.99. With free shipping, that's $27 under our April mention and the best price we've ever seen for these headphones. (It's also a current price low by $25.) These earbud-style headphones actively cancel outside noise and feature 5Hz to 16kHz frequency response, airplane plug adapter, 120-hour battery life, and more. Deal ends June 28.