The Philips Fidelio L3 Headband Headphones are designed with on-the-go audiophiles and music lovers in mind with their premium feel and full natural tones. The L3s features 40mm drivers for clear highs full-bodied mids and impactful lows that hone in on the details of tracks unlike anything youve heard before. Premium materials and components have been combined to present headphones that are ideal for long flights and an active lifestyle whether your genre of choice is delicate classical or blistering rock the 38-hour battery life will suit you. A detachable cable premium hard case and aeroplane adapter also feature making the L3s ideal for travel.