In ear headphones are a shorter version of full size headphone. They are easy to carry and are suitable for devices such as iPod and mp3 players. Here are some of the popular in ear noise cancelling headphones in the market.

JVC in-Ear Noise Cancelling Headphones

The HANCX77 is JVC's first in-ear style noise canceling headphones reflecting JVC's commitment to style and technology. It cancels up to an amazing 80% (more than 14dB at 120Hz) of background noise, and also features a unique contoured canal design earpiece that's slightly angled, allowing a natural and secure fit that provides maximum sound isolation. Because of the superb ambient noise seal, precise acoustic coupling to the eardrum can be employed, thereby lowering the volume required to achieve the full sonic impact. The HANCX77 also features a monitor function that allows users to mute the sound for conversation or listening to announcements. Provided accessories include three different sizes ear pieces, dual plug adaptor, soft carrying case, and one AAA battery which runs the unit for approximately 70 hours. 

SONY in-Ear Noise Cancelling Headphones

It is ideal for travelling in planes and trains and it is small enough to keep in the pocket all the time. Sony's MDRNC11 noise-canceling Fontopia ear-bud headphones reduce outside noise by more than 70%. The headphones' noise-canceling circuit senses outside noise using tiny, built-in microphones and sends an equal-but-opposite canceling signal to the headphone drivers, effectively blocking solid-state (continuous) noise from 50 to 1,000 Hz. It's especially effective on noises like air-conditioning systems, freeway rumble, and airplane engines (from a passenger's perspective).

The switchable noise-canceling circuitry runs for approximately 60 hours on a single AAA alkaline battery. When noise canceling is off, the headphones continue to function for standard music listening (and with slightly better sound quality). An inline volume control lets you adjust the sound without having to access your sound source.

Philips In-Ear Noise Cancelling Headphones

Tune out the drone of the airplane and tune into your music with the Philips SBCHN060 In-Ear Noise Cancelling Headphones. Yes, with active noise cancelling technology integrated into these headphones you can do exactly that. The active noise cancelling technology actually creates an equal but opposite waveform that effectively cancels out the unwanted outside noise. Great for removing low frequency noise so you can listen to music at lower volume levels in even the noisiest environments like airplanes.

And because the headphones come with an airplane adaptor (it converts the standard double mono jack to a stereo headphone jack) you can listen to all your in-flight entertainment with noise cancelling too!