Rediscover all the emotion of your favorite music with Sony Balanced Armature ear buds while enjoying the added benefit of in-line iPod/iPhone/iPad control. Sound Story Balanced Armature headphones are noted for their delivery of smooth and broad frequency response with notable vocal clarity. Balanced Armature Driver A full-range driver unit delivers the detailed and transparent sound reproduction you crave. Be it your favorite vocalist, piano, guitar or drum solo, you will hear the most subtle musical details with tremendous clarity. Unique delta shape for a great fit The unique delta shape, stay-in design affords an improved in-ear fit, gently resting just inside the ear. Made for iPod/iPhone/update in-line 3-button remote affords volume and track control (Play, Stop, Next/Prior) for iPod, iPhone iPad, while the built-in microphone makes it easy to take calls through it all.1 Private and confidential Improved fit results in significantly lower sound leakage levels, both in or out, giving you uninterrupted access to your music. Just your size Hybrid silicone ear buds, supplied in 4 sizes, allow for a tailored fit that maximizes overall sound quality and comfort. Tangle-free serrated cord serrated finish resists tangles, so you can get caught up in your music, not your cord.