Tech Rabbit offers the refurbished Plantronics Backbeat Go Bluetooth Stereo Headset in Black, model no. 86800-01, for $29.99. Coupon code "ATS472VJ" cuts it to $19.99. With free shipping, that's $9 under our February mention and the lowest total price we've seen. (It's also a current low for a refurb by $9.) These sweat- and moisture-resistant earbuds feature Bluetooth, a 33-foot wireless range, echo cancellation, inline controls, and three cushioned eartips sizes. Deal ends May 1.

A 90-day warranty applies, but it's unclear who backs it.