For screen reader problems with this website, please call406-265-55684 0 6 2 6 5 5 5 6 8Standard carrier rates apply to texts.

Sennheiser HDA 300 Blue/Red Over-Ear Headphones
Sennheiser HDA 300 Blue/Red Over-Ear Headphones 0
Sennheiser HDA 300 Blue/Red Over-Ear Headphones 1
Sennheiser HDA 300 Blue/Red Over-Ear Headphones 2

Sennheiser HDA 300 Blue/Red Over-Ear Headphones

Model #: HDA 300
At a Glance
Sennheiser HDA 300 Closed Dynamic Headphones with high passive ambient noise attenuation and foldable ear cups
Call for Best Price
$99,999.00Save $NaN

Get to know this product.

The HDA 300 is a pair of closed, dynamic headphones designed for use with audiometers.


  • Suitable for high frequency audiometry
  • High passive ambient noise attenuation - patients only hear what they are supposed to hear
  • Excellent repeatability of readings
  • Excellent comfort fit even for long testing periods thanks to soft, replaceable ear pads and two padded headbands
  • Single-sided cable for tangle-free sessions
  • Equipped with two mono plugs for immediate use
  • Foldable ear cups for portable use and easy storage
  • Design approved by the PTB (German organization for type approvals, a national standards organization similar to the British Standards Institute or the American National Bureau of Standards).

Technical Data

  • Connector 2 Mono-Jacks right. Or free: Green: -L, yellow: +L, red: +R, blue: -R
  • Frequency response (Headphones): 20 Hz - 20,000 Hz
  • Characteristic SPL 117dB at 1kHz, 0,5V
  • Contact pressure: 8.8N +/- 0.5N
  • Ear coupling: Circumaural
  • Connection cable: ca. 2.2m
  • Transducer principle: Dynamic, closed
  • Weight incl. cable: 490 g
  • Nominal impedance: 23 Ohm
  • Load rating: 500 mW
  • Max. Input voltage: 3.5 V, < 10 min

*Warning (for California residents only): Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Every Consumer Products company is required to post the warning no matter if their products pose any harm. Sennheiser products are all RoHs compliant, yet we are by law required to post the Proposition 65 warning message anyway.



Weight (grams):490


Impedance:23 Ohms

Misc. Specs

Frequency Response20 Hz - 20,000 Hz
Connector TypeMono Jacks
Sport HeadphoneNo
Color Finish NameBlue/Red
Connection TypeMono Jacks
Headphone TypeOver-Ear
WarningProposition 65 Warning for California Residents