Sony MDR-1ADAC

Specifications
Sony MDR-1ADAC
General DataDriver unit
Microphone
Magnet
Beat response
Frequency
Sensitivity
Dynamic type
Impedance
Cord type
Cord length
Plug
Weight
Color  
40 mm


Headband, On-ear
4–40,000Hz (digital), 4–100,000Hz (analog)

Yes
40Ω at 1kHz

1.2 m

300 grams
Black, gray
Features
Foldable ear cups for easy portability
Beat Response Control reduces heavy bass distortion
High-Resolution Audio compatible
Responsive Liquid Crystal Polymer driver for clarity
8 hours of battery life
Image: http://www.johnlewis.com/sony-mdr-1adac-full-size-headphones-with-built-in-usb-dac-amplifier-black/p1783636

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