You don’t need to sell a kidney to afford noise-cancelling Bluetooth headphones; these 4 star-rated Cowin E-7s are just $40 right now, or $30 off with promo code 9H9778YO.

They might not have the brand recognition of Sony or Bose, but these headphones pack in 30 hours of battery life, and yes, active noise cancellation that reviewers say works really well.