Best Buy via eBay offers the JayBird X3 Wireless In-Ear Headphones in Black, Green, or White for $99.99 with free shipping. (Several merchants are currently price-matching, including Target, Amazon, and eBags) That's the lowest price we could find by $30, although in January we saw them for $3 less. They feature a 20Hz-20kHz frequency response, 5.8mm drivers, and Bluetooth 4.1.