BuyDig offers the Sony h.Ear Wireless Bluetooth Over-Ear Noise-Cancelling Headphones in Viridian Blue or Charcoal Black for an in-cart price of $175 with free shipping. That's tied with our mention from three days ago as the lowest price we've seen. (It's the best deal now by $44.) These closed-back headphones feature Bluetooth 4.0, 40mm neodymium drivers, a 5Hz to 40kHz frequency response, built-in microphone, and built-in rechargeable Li-ion battery with up to six hours of play-time per charge.