Number 1 in Service via Amazon offers Prime members the Westinghouse Bluetooth Wireless Headphones with Mic, model no. WES-BTHP-150, for $23.99 with free shipping. (Non-members can spend $35 or more to dodge the shipping fee; otherwise it adds $6.47.) That's $36 off list and tied with our November mention as the lowest total price we could find, outside of the mention below. They feature on-ear buttons, Bluetooth 3.0 with a wireless range of 30 feet, built-in mic, frequency response of 20Hz to 20KHz, and a rechargeable battery.
A lower price: For pickup only, Menards offers it for $9.99, although stock is very limited and varies by ZIP code.