We haven't had a chance to fully test this product yet, but we've assembled this helpful overview of relevant information on it.
Tivoli Audio Radio Silenz
Tivoli Audio’s Radio Silenz supra-aural headphones employ a wood-based architecture, and feature active noise-cancelling technology as well as an in-line remote for user convenience. The ear cups on this device are capable of folding up, and are rotatable up to 90 degrees.
Active Noise-Cancelling Technology
Fold-up Ear Cups