Secondipity via eBay offers the refurbished Sony Wireless Bluetooth Over-the-Ear Headphones in Black (pictured), model no. MDR-ZX770BT, for $54.99 with free shipping. That's $13 under our December mention of a new pair and the lowest total price we've seen. (It's also $41 less than a new pair today.) These closed-back headphones feature 1-touch listening via NFC, a 20Hz to 20kHz frequency response, 40mm drivers, built-in microphone, 33-foot wireless range, and adjustable earpads and headband.

Also available is the refurbished Sony Extra Bass Wireless Bluetooth Over-the-Ear Headset, model no. MDRXB950BT/B, for $84.99 with free shipping. That's $43 below our December mention of a new pair (although that came bundled with a $50 Dell gift card) and $45 under the the lowest total price we could find for a new one today. It features 40mm dome drivers, a bass-boosting DSP circuit, rechargeable Li-ion battery with 20-hour talk/playback time, Bluetooth 3.0 with a 30-foot range, 3Hz to 28kHz wired frequency response, 20Hz to 20kHz Bluetooth frequency response, built-in omnidirectional microphone, and auxiliary 4-foot 3.5mm audio cable.

A 90-day Liquidity Services warranty applies to each item.