These House of Marley headphones feature 40 mm hi-definition drivers for an awesome audio experience. Enjoy up to 34 hours of listening time on a full charge, or get 4 hours with a quick 15-minute charge. The memory foam and REWIND fabric earcups ensure comfort for all-day listening. Made from sustainable materials including FSC certified wood and recyclable aluminium, these headphones fold neatly and come with a travel bag, making them ideal for journeys.