NVX in-Ear Maximum Clarity Multi-Purpose Headphones [Earbuds] with ComfortMax Tips [IE2GR] Powerful 7mm neodymium drivers deliver smooth, even tonality and exceptional, accurate music Sealed with ComfortMax tips that are contoured to provide superior comfort for long audio sessions In-ear design headphones reduces background noise for clearer sound & optimal listening experience In-line one-button control for answering calls, adjust volume and skip tracks while on-the go Compatible to use with both iPhone and Android devices with 3.5mm audio jack