DIALOG M-250HV - Headset with volume control and metal rim
| Model | M-250HV |
| 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 | foamed polyurethane |
| Headband | Adjustable length, metal rim |
| Cable length (m) | 1.2 ± 5% |
| Connector type | RTTS CTIA Minijack 3.5 mm |
| Weight (grams) | 45 |
| Weight without cable (grams) | 29 |
| Microphone type | Capacitor |
| Microphone mode | Mono |
| Microphone construction | Headset, on-cord construction with peg |
| Body material | Plastic, black |
| Impedance (kOhm) | 2.2 |
| Sensitivity (Db) | -60 ± 3 |
| Frequency range (Hz-kHz) | 30-16 |
| Parts supplied | Headset, warranty card, packaging |
Product card from www.dialoginvest.com