Cowin via Amazon offers its Cowin E-7 Active Noise Cancelling Bluetooth Headphones in Black for $69.99. Coupon code "AU2KA5OO" cuts that to $39.19. With free shipping, that's $10 under last month's mention, $61 off list, and the lowest price we've seen. They feature 40mm drivers, swiveling earcups, mic, remote, and 30 hours playtime in Bluetooth mode.