Cowin E-7 Active Noise Cancelling Wireless Bluetooth Over-Ear Stereo Headphones for $39.19 shipped after coupon code AU2KA5OO. Here is a screenshot for reference. It features active noise cancelling technology, 40mm large-aperture drivers, on-board mic pulse remote, and more. In addition to Bluetooth, it can also be used using a 3.5mm audio cable. Most places have it for about $69.