Kokoon Noise Cancelling Headphones With Mask (Box Included)

Trading excellent condition Kokoon headphones and mask. Comes with a convenient holder and original box. Syncs with app to play meditation, white noise and more - monitors when you're sleeping and turns off sound when you reach REM. Retails $499 CAD so no btz. High value trade or bundle preferred.

I'm a side sleeper so I just don't use it enough.