TechRabbit offers the refurbished Sol Republic Tracks HD On-Ear Headphones in Black for $19.99 with free shipping. That's $30 under the lowest price we could find for new ones today. Features include a V10 sound engine, 3-button cable with an omnidirectional microphone, and a flexible headband. Deal ends May 21.

Note: A 1-year TechRabbit warranty applies.