[. . . ] They come with a variety of 3 cap sizes to ensure a perfect seal and comfortable fit. [. . . ] Ideal for planes and trains Optimal listening in noisy environments · Sophisticated electronics eliminate unwanted noise by 85% · Creates a perfect seal for perfect sound Made to fit you and your lifestyle · Super-soft ear cushions for hours of comfort · 3 interchangeable rubber ear caps for optimal fit in all ears · Slim, lightweight controls for power and volume adjustment · Hang the headphones around your neck for convenience · Press the talk mode to hear the ambient sound conveniently Always ready to go · Adapter for in-flight entertainment system connection · 3. 5 - 6. 35 mm adapter connects to all types of audio devices · Battery included so you can use your product straight away Noise Cancelling Headphones 15382-31-16/10 Specifications Sound · · · · · · · · · · · · · · · Acoustic system: Open Diaphragm: Mylar dome Frequency response: 18­22, 000 Hz Impedance: On: 245 ohms; Off: 116 ohms Magnet type: Neodymium Maximum power input: 20 mW Noise cancelling effect: 12 dB at 200 Hz; 90 - 2000 Hz Sensitivity: 102 dB Speaker diameter: 8. 6 mm Type: Dynamic Voice coil: Copper Cable length: 1. 5 m Connector: 3. 5 mm stereo Finishing of connector: Gold plated Type of cable: OFC · · · · · · Highlights Outer Carton EAN: 87 12581 55598 6 Outer carton (L x W x H): 29. 4 x 24. 4 x 25. 5 cm Number of consumer packages: 12 Gross weight: 1. 846 kg Net weight: 0. 55992 kg Tare weight: 1. 28608 kg 85% Noise Cancelling Connectivity · Packaging dimensions (W x H x D): 9. 6 x 19. 6 x 4. 2 cm · Gross weight: 0. 10966 kg · Net weight: 0. 04666 kg · Tare weight: 0. 063 kg · EAN: 69 23410 70436 5 · Number of products included: 1 · Packaging type: Blister · · · · · · · Packaging dimensions Smart noise cancelling technology enhances the pleasure of listening to lower volume levels in noisy environments. It's particularly good at removing low frequencies like jet engine noise, so you can enjoy soft music on flights and in trains and similar places without hearing a distracting buzz in the background. The technology actually creates an equal but opposite waveform to the unwanted noise that effectively cancels it out. Create a perfect seal Inner Carton A perfect seal between your ear and headphone will significantly reduce unwanted background noise. Press the talk mode on the control box and the ambient sound will get in to your ears via the microphone on the headphones. Aircraft adapter included Use your own headphones to listen to in-flight entertainment. The adapter simply converts the standard double-mono jacks to a stereo headphone jack. Audio jack adapter included With this adapter, you can use your headphone on equipment with either 3. 5 or 6. 35 mm jacks, giving you a wider choice of audio devices. Battery included No need to buy batteries to get started. Just drop the batteries in and go! Issue date 2011-04-19 Version: 4. 0. 6 © 2011 Koninklijke Philips Electronics N. V. [. . . ] The adapter simply converts the standard double-mono jacks to a stereo headphone jack. Audio jack adapter included With this adapter, you can use your headphone on equipment with either 3. 5 or 6. 35 mm jacks, giving you a wider choice of audio devices. Battery included No need to buy batteries to get started. [. . . ]