Newegg offers the Philips SHB 4100 Bluetooth On-Ear Headphones in Black, model no. SHB 4100, for $11.99 with free shipping. That's tied with December's mention as the lowest total price we've seen and a very strong price for name-brand Bluetooth headphones. (It's also a current low by $23.) They feature 32mm drivers, Bluetooth 3.0, leatherette ear cushions, and a USB charging cable.