Active noise cancellation for pure AKG sound quality.
Noisy airplane cabins. Crowded subway cars. Bustling plazas. Busy coffeehouses. You never know what kinds of ambient noise will compromise your ability t o fully appreciate AKG sound. With K391 NC headphones, you don’t have to accommodate noise, you can eliminate it. These in-ear headphones employ active noise-canceling technology that strips away the outside sounds and leaves you with nothing but powerful, detailed AKG sound. The battery that powers the noise canceling lasts up to forty hours and can be easily recharged via a USB port. Compact and easy to travel with, K391 NC headphones come with a flight adapter that takes the sound quality of in-flight movies and audio programming to new heights. The closed-back design keeps your music from leaking out and distracting others, while an in-line microphone lets you answer a call as easily as listening to a song. The K391 NCs even include a case to protect your iPhone or iPod. Lightweight and comfortable, these in-ear headphones deliver the studio-quality sound that AKG engineering has provided top musicians for over 65 years. Plus the technology to help you enjoy it anywhere. After all, nothing helps you appreciate AKG sound quality like active noise cancellation.

• Famous AKG® sound quality
• Active noise cancellation
• 40-hour play time
• Closed-back design
• In-line microphone and remote control
• Flight adapter
• Carrying pouch
• Famous AKG® sound quality
• For over 65 years, AKG Acoustics has been the leader in creating studio sound in headphones. We hold over 1,400 patents for our groundbreaking products; and two TECHNICAL GRAMMY® Awards (2010, 2005) for sound innovation.
  
  Active noise cancellation
• Tiny microphones on the outside of each of the earpieces detect the difference between the sound the K391 NC headphones are delivering and the sound coming from the world around. Noise-canceling technology then creates exact waveforms to negate the unwanted noise, so that all you hear is the desired music or audio.
  
  40-hour play time
• The battery used to power the active noise cancellation in the K391 NC headphones will last up to 40 hours. And the battery is easily rechargeable via a USB port, making recharging convenient in airports, planes and other locations with USB recharging stations. Two cables for different phone models are included.
  
  Closed-back design
• K391 NC headphones keep music in and noise out. Their closed-back design helps attenuate ambient noise while also preventing the sounds that you’re hearing from leaking out.
  
  In-line microphone and remote control
• K391 NC headphones have an in-line microphone, so you can make calls that are every bit as crisp and noise-free as the music you listen to on your smartphone. The mic is ideal for FaceTime, Skype™ and virtually any application requiring a microphone. The three-button remote lets you control the playback functions and volume from iPhone and iPad devices, as well as Apple laptops and desktop computers.
  
  Flight adapter
• When it comes to audio quality, courtesy airline earphones aren’t much of a courtesy. K391 NC headphones come with an adapter that makes them compatible with nearly every airline, so that you can enjoy in-flight entertainment with AKG sound quality.
  
  Carrying pouch
• Nothing slows down the listening process like having to undo a twisted knot of headphone cord. AKG K391 in-ear headphones come with a carrying pouch so that you can store them safely and help keep the cord from becoming an unruly ball of tangles.
  
  What’s included:
  
• 1 set of AKG K391 NC in-ear headphones
• 2 cables for different smartphone models
• 1 flight adapter
• Carrying pouch