| Color | : black |
| Frequency response (Headphones) | : 16 - 22000 Hz |
| Contact pressure | : ~ 2,5 N |
| Ear coupling | : supraaural |
| Jack plug | : 3,5/6,3 mm stereo |
| Cable length | : 1,5 m (HD 25 Plus: 1-3 m) |
| Transducer principle | : dynamic, closed |
| Weight Without cable | : ~ 140 g |
| Nominal impedance | : 70 |
| Load rating | : 200 mW |
| Max. Sound pressure level (active) | : 120 dB |