Philips Headphones SHS3300BK 27mm drivers/ open-back Earhook 1 Extra bass for powerful sound Enjoy the bass beat sound of ear-clip headphones that designed for comfort, stability and performance. Music to your ears 27mm speaker driver delivers big sound performance Bass beat vents allow air movement for better sound Neodymium magnets enhance bass performance and sensitivity Made to fit you and your lifestyle Ear cushions improve wearing comfort and bass response Contoured earhook increase wearing comfort and stability Asymmetric cable keeps the cable out the way Always ready to go A 1.2m long cable that is ideal for outdoor use