Secondipity via eBay offers the refurbished Sony Bluetooth Wireless Earphones in Black or Gold for $69.99 with free shipping. That's $108 under the price of a new pair and the lowest refurb price we could find. They feature digital noise cancelling, ambient sounds, a battery life of up to nine hours, and include a hard carrying case with battery.
Note: A 90-day Sony warranty applies.
The planet will thank you, your local (overwhelmed) landfill will thank you. Even your budget will thank you.