Sennheiser CXC 700

The Sennheiser CXC 700 is a high-end set of in-ear headphones. With the NoiseGard/Digital Active Noise Cancellation feature of these headphones, you have three different modes to choose from (each of which designates a different type of noise cancellation), depending on your listening environment.

There is a focus on low frequency range (100 to 400 Hz) for train and bus commutes, a focus on mid frequency range (400 to 3000 Hz) for long-haul flights, and a balance between low and mid frequency ranges (100 to 3000 Hz) for crowded environments on the go. The CXC 700's TalkThrough function mutes the audio input and allows you to listen to your external environment, enabling you to communicate without removing the earphones. The integrated control box of these headphones allows you to control the TalkThrough and NoiseGard/Digital Active Noise Cancellation features, as well as the volume. A single AAA battery will power the CXC 700 headphones for up to sixteen hours (though you can still get reduced performance audio through the headphones with no battery, in passive mode). The Sennheiser CXC 700 in-ear headphones have been optimized for in-flight entertainment systems, as well as MP3, iPod, iPhone, iPad and other portable media players