Sennheiser earphone CX400 II

With superior musical detail resolution across the board and more precise dynamics, the CX400-II Precision Black ear-canal phones target music aficionados wanting to upgrade the sound quality of their portable audio devices. The wide array of ear adapters (S/M/L sizes) provided in the package allows for a personalized fit as well as an excellent passive attenuation of ambient noise. To add to your listening convenience, a volume control has also been integrated into the cable.