Sennheiser     
Smartphone Headset    
HD 471 - Around Ear Headphones with Inline mic    
    
The closed around-ear HD 471 features an advanced acoustic system with powerful neodymium magnets and lightweight diaphragms for a lifelike stereo sound experience.    
    
    
Overview    
With its striking aesthetics and unsurpassed sound quality Sennheiser’s HD 471 offers pure listening pleasure, whether you’re on the go or in your living room. Highly advanced transducers and innovative, lightweight diaphragms work in conjunction to provide clear, detailed sound reproduction, while the ergonomic circumaural design ensures maximum attenuation of ambient noise and a comfortable fit even after hours of use. And because these headphones are fully compatible with both portable devices as well as home stereo equipment, you’ll be able to enjoy amazing sound quality anywhere. Sennheiser’s HD 471: If you’re looking for high-performance audio, you’ve found it.    
    
    
Features    
"Comfortable fit due to the ergonomic design
 Improved freedom of movement and convenience thanks to the detachable, single-sided cables with in-line remote
 Optimal connectivity to home stereo equipment with gold-plated plugs, an additional 3m cable and a 6.3mm plug adaptor
 Added protection and convenience with the storage pouch and extension cable
 HD 471i is optimized for use with your portable iOS device (iPad, iPhone and iPod are trademarks of Apple Inc., registered in the U.S. and other countries.) HD 471G is optimized for use with your portable Android devices.
 2-year warranty"    
    
    
What's in the box?    
"Stereo headphones
 1.4m audio cable with integrated smart remote and microphone
 3.5mm angled plug (HD 471G); 
 3.0m additional audio cable with 3.5mm straight plug
 6.3 mm plug adaptor
 Storage pouch"    
    
    
    
Technical Data    
Color    black 
Device    "Samsung Galaxy™  
         LG™  
         HTC™ 
         Sony™ "
Impedance    32 Ω 
Frequency response    16 Hz - 24,000 Hz 
Sound pressure level (SPL)    114 dB (1kHz/1Vrms) 
THD, total harmonic distortion    <0.1% (1kHz/100dB)