Sami809 via eBay offers the open-box Plantronics Backbeat Go Bluetooth Earbuds for $32.99 with free shipping. That's $27 under our May mention and the best we could find by $20. These sweat- and moisture-resistant earbuds feature Bluetooth, a 33-foot wireless range, echo cancellation, inline controls, and three cushioned eartips sizes.

Note that this item is new in original packaging but the seal is broken.