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fullspecs
Specification
Price
Rs.5,500.00
Rs.5,850.00
Brand
Sennheiser
Koss
Model No
HD 449
QZ-99
Wired / Wireless
Wired Headphone Specification
Wired Headphone Specification
Headphone Type
Over Ear
Over Ear
Magnet Type
Neodymium
Neodymium
Driver Diameter
40 mm
NA
Impedance
32 Ohms
60 Ohms
Sensitivity
114 dB/mW
102 dB/mW
Frequency Response
16 Hz - 24,000 Hz
40 Hz - 20000 Hz
Maximum Power Input
NA
NA
Noise Cancelling
NA
Yes
Available Colors
Black
Black
Connector Plating
3.5 mm Gold Plated Plug
3.5 mm Gold Plated Jack
Cable
1.4 mm
2.5 m
Weight
Approx 130 g
NA
Other Features
- 1.4 m single-sided OFC cable with 1.6 m extension cable 
- Advanced acoustic system with powerful neodymium magnets and lightweight diaphragms for a lifelike stereo sound experience
- Closed circumaural headphone design isolate against ambient noise
- Ergonomic design provides a comfortable fit
- Gold plated plugs and 6.3mm stereo adaptor for excellent connectivity, with home Hifi equipment
- Carrying pouch and extension cable for protection and added length
- 2-year warranty
- Neodymium magnet structures deliver outstanding clarity and definition
- Closed Pneumaliteâ„¢ ear cushions and extra-secure headband seal ears, eliminate all ambient noise
- Volume control on ear cup allows easy level adjustment
- Stereo/mono switch extends user flexibility
- Includes 8 foot, coiled, single-entry cord with 3.5 mm plug and 6.3 mm adapter
- Covered under the Koss Stereo phones Limited Lifetime Warranty

Top Differences

  • Noise Cancelling: NA vs Yes
  • Driver Size: 40 mm vs NA
  • Weight: Approx 130 g vs NA
  • Impedance: 32 Ohms Vs 60 Ohms