Ex Display unit in very good condition.  See photos to see condition and what is included.  Does not have original box see the photos.  Headphones appear to be new with no signs of any real world use

By "Ex Display" we mean it was on the shop floor for customers to view and possibly handle.  

VAT registered business seller

Genuine Sennheiser HD 231i 

No matter where and when, you'll always be happy to have your HD 218i along for the ride. Its full sound and dynamic bass reproduction keep you going, day in and day out.

The closed, supra-aural acoustics screen out surrounding noise - the clatter of the train or the chatter of people sitting next to you - so you can immerse yourself in the excellent bass-driven Sennheiser stereo sound.

When a call comes in, take it using the smart in-line remote control with microphone. It's been especially developed for use with Apple devices, like the latest generations of iPod, iPhone and iPad*. You can control the volume, answer and end calls, use the iPhone Voice Control function and browse and play your music all from a sleek unit located directly on the cord.

The HD 218i doesn't just sound great, it's stylish and super comfortable, too. With individually adjustable ear cups featuring large, very comfortable cushioning and a soft, secure headband, the HD 218i makes your daily commute something to look forward to.

The remote and microphone are supported by iPod nano (4th generation and later), iPod classic (120GB, 160GB), iPod touch (2nd generation and later), iPhone 3GS, iPhone 4, iPad, Macbook, Macbook Pro and Mac Pro (2009 and later). The remote is supported by iPod shuffle (3rd generation and later). Voice Control is supported by the latest iPod touch, iPhone 4 and iPhone 3GS. Audio is supported by all iPod models. (iPhone, iPod, iPod classic, iPod nano, iPod shuffle, and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. iPad is a trademark of Apple Inc.)
Smart in-line remote control with microphone - change the volume, control your music-playing options, answer or end calls and activate Voice Control - all from a sleek built-in unit

Powerful Sennheiser bass - the dynamic speaker system with neodymium magnets delivers bombastic bass-driven stereo sound

Customized fit - the ear cups are individually adjustable so you have a comfortable, secure fit

Ultra comfortable - the large cushioned ear pads and headband keep you going, however long the commute

Made for latest generations of iPod, iPhone and the iPad

Specifications
Impedance  32 Ω
Connector  3.5 mm plug, straight
Frequency response (Headphones)  19 – 21000 Hz
Sound pressure level (SPL)  108 dB
THD, total harmonic distortion  < 0,5 %
Ear coupling  Supra-aural
Cable length 1.2 m
Weight ~ 92 g
Sensitivity as per 121 TR 9-5  -40 dBV/Pa
Transducer principle (headphones)  dynamic

What's in the Box
HD 231i headset
Quick start guide