DIALOG M-821HV - Headphones with volume control
| Model | M-821HV |
| Controls | Volume regulator (on cord) |
| Mode | Stereo |
| Loudspeaker diameter, mm | 27 |
| Impedance (Ohm) | 32 ± 15% |
| Sensitivity (dB/mW) | 105 ± 3 @ 1 kHz |
| Frequency range (Hz-kHz) | 20-20 |
| Acoustic environment | Closed |
| Flaps | Plastic |
| Embouchures | "Circum-aural" foamed polyurethane, leatherette |
| Headband | Adjustable length, plastic, leatherette, foldable construction |
| Cable length (m) | 2,2 ± 10% |
| Connector type | Mini jack 3,5 mm |
| Parts supplied | Headphone, warranty card, packing |
Product card from www.dialoginvest.com