Tanga offers the refurbished Beats by Dr. Dre Powerbeats In-Ear Headphones in Red, Black, or White for $48.99 with free shipping. That's $8 below last month's mention of a new unit and the lowest total price we've seen. (They're a current low by $61.) They feature a built-in subwoofer, passive sound isolation, and ControlTalk in-line mic and remote.

A 30-day warranty applies, although it's unclear who backs it.