Enjoy listening to your favorite tunes and communicate with clarity using the sennheiser in ear headset cx 275s headset. It is compatible with all smartphones that have a 3.5mm headphone jack. Be it an android phone, an ios device, or a windows phone, the sennheiser cx275s headset is designed to support them all. The superior dynamic speaker systems deliver exceptional audio performance at all times. They effectively keep out noise, so that you can lose yourself in your favourite songs while on the go. Simply plug this headset on to your smartphone to listen to high-quality music. Features - excellent compatibility with all major mobile smartphone brands using a 3.5 headphone jack - features an in-line microphone and remote for easy management of calls and tracks - outstanding audio and noise attenuation - fits virtually any smartphone brands in the market - intuitive design matched with premium comfort.