Pinnacle Deals via Amazon offers Prime members the refurbished Sennheiser HD 219 Headphones for $10.99 with free shipping.(Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $5.74.) That's the lowest total price we've seen for any Sennheiser on-ear headphones since November. Sales tax is added where applicable. They fold flat and feature a frequency response of 19Hz to 21 KHz.

A 2-year warranty applies, although it's unclear who backs it.