The Philips SHE8500 In-Ear Headphones provide superb sound. Ultra-small quality speakers and choice of three cap sizes deliver the sound closer to the ear while also creating a snug fit that blocks external noise. 3 interchangeable rubber caps for optimal fit in all ears 3 interchangeable rubber caps for optimal fit in all ears With a choice of 3 interchangeable ear caps from size small to large, surely there is a pair that makes these Philips earphones fit your ear perfectly. Passive noise isolation for better sound at lower volume The perfect, snug fit inside your ear stops unwanted background noise detracting from the pure pleasure of your favorite music. This means you still enjoy the headphones' superb sound quality at lower volume settings, and also benefit from a longer battery life. Neodymium magnets enhance bass performance and sensitivity Neodynium is the best material for producing a strong magnetic field for greater sensitivity in a voice coil, better bass response and higher overall sound quality. Ergonomically-shaped headphone enhances user comfort This headphone is designed around the shape of your ear for extra comfort and more enjoyment during longer periods of listening. Asymmetric cable keeps the cable out the way This simple yet highly effective solution to cable tangling works effectivly by enabling you to hang the cable behind your neck instead of under your chin. A 1.2m long cable that is ideal for outdoor use The ideal cable length to give you the freedom to put your audio device where you want.