Realistic music reproduction demands clean, undistorted bass response, and the new K 311 headphones perform brilliantly, at any listening level. A virtually weightless semi-open design, K 311 extends the AKG professional tradition to ear buds you can take with you anywhere AKG K 311 In Ear Headphone Features and Specifications: Frequency range (Hz-kHz) 18-20.5 Input impedance (ohms) 32 Sensitivity (dB SPL/V) 125 Headphones weight without cable 5g Max. input power (mW) 15 99.99% oxygen-free cable (length in m) 1,0 Semi-open, dynamic headphones Suited for (SA) CD, DVD (A), DAT Best for MP3, CD, MD and PC/laptops
| General | Product Type | Headphones |
| Weight | 5 g | |
| Colour | Smoke | |
| Recommended Use | Portable audio system | |
| Headphones | Headphones Type | Headphones - binaural |
| Headphones Form Factor | Ear-bud | |
| Headphones Technology | Dynamic | |
| Connectivity Technology | Wired | |
| Sound Output Mode | Stereo | |
| Response Bandwidth | 18 - 20500 Hz | |
| Sensitivity | 125 dB | |
| Impedance | 32 Ohm | |
| Headphones Ear Pads | Included | |
| Miscellaneous | Cables Included | Headphones cable - integrated - 1 m |
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