Monoprice offers its Monoprice Enhanced Bass Hi-Fi Noise-Isolating Earphones in Silver, model no. 8320, for $6.02 with free shipping. (They're also available in Pink, model no. 9960, for 10 cents less.) That's $3 below our April mention and the lowest total price we've seen for these headphones this year. (They're a current low by $3.) They feature a 20Hz to 20kHz frequency response, 14.2mm drivers, and a 48" cord. Deal ends September 22.