Able Planet Clear Harmony Active Noise-Canceling Headphones (Discontinued by Manufacturer) Patented LINX AUDIOTM technology provides award winning sound quality State-of-the-art active noise cancellation (ANC), to reduce undesirable sounds and background noise Hard shell protective carrying case with storage area Lightweight adjustable headband provides superior fitFull-size ear cups with soft cushions swivel for maximum comfort In-line volume control enables easy adjustment to safe listening levels for hearing preservation