Introducing Sennheiser’s first universal mobile music and communication headset: the CX 275s. Compatible with Android, Windows, RIM and iOS devices, this in ear canal headset offers excellent compatibility with virtually all major mobile smartphone brands using a 3.5 mm headphone jack. With the CX 275s you get legendary Sennheiser audio performance on the go, regardless of which smart phone you have. Different sized silicon ear tip adaptors provide an excellent fit and deliver ambient noise attenuation. Full control is achieved using the in-line remote with microphone for easy management of calls and music track selection. The CX 275s is the answer to complete entertainment enjoyment while keeping you fully connected on the move!