SE-NC21M
| Manufacturer | Pioneer |
| Function | Headphones (On-ear noise canceller) |
| Country | Japan |
| Form Factor | Headphone - Circumaural |
| Signal Path | Analog Hardware |
| Weight | 120 g |
| Frequency Response | 10 – 22,000 Hz |
| Impedance | 145 Ω |
| Maximum efficiency | 92 dB |
| Connections |
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| Links | Pioneer Site |
| Notes | SOUND: Reduces ambient noise by about 90%, producing clearer and more audible sound. DESIGN: The energy-saving design allows up to 120 hours of continuous listening enjoyment. (When using alkaline batteries.) The noise-cancelling function can be turned off if not necessary, allowing you to use them as regular headphones. |