Today only, JustDeals offers the Pioneer Loop On-Ear Stereo Headphones in Red, model no. SE-MJ31K, for $23.77. Coupon code "DEALNEWS1" yields free shipping. That's a buck under our June mention and the lowest total price we could find by $4. These foldable headphones feature 40mm drivers, a frequency response of 8Hz to 25kHz, 105dB sensitivity, and more.