BuyDig via eBay offers the Audio-Technica SonicFuel On-Ear Headphones, model no. ATH-OX7AMP, for $69.99 with free shipping. That's $30 under our mention from May, a low today by $44, and the lowest total price we've seen. They feature a built-in high-output amplifier, two detachable cables, 40mm drivers, and 9Hz to 26kHz frequency response range.