| Additional Features | Advanced Acoustic System, Light Weight Diaphragms, Isolate Against Ambient Noise, Total Harmonic Distortion: 1 kHz / 100 dB |
| Flatwire | No |
| Bluetooth | No |
| Cord Type | 1.4 m Optical Fiber Cable Cord |
| Headphone Jack | 3.5 mm |
| Connector Plating | Gold Plated |
| Frequency Response | 16 - 24000 Hz |
| Impedance | 32 ohm (Power On) |
| Sensitivity | 114 dB/mW (Power On) |
| Noise Cancellation | Yes |
| Other Performance Features | Stereo Sound Experience |
| Brand | Sennheiser |
| Color | Black |
| Headphone Type | Over the Ear (Circumaural), Closed Back |
| Model ID | HD 449 |
| Headset Design | Over the Head |
| Magnet Type | Neodymium |
| Wired/Wireless | Wired |
| In Sales Package | Headphone, 1.4 m and 3 m Detachable Cables, 6.3 mm Adaptor Plug, Carrying Pouch |
| Compatible Devices | Mobile, Audio Player, Tablet, Computer |
| Designed For | ?MP3, CD Players, iPad, iPod, iPhone |