| Dimensions | Approx. 105 x 43 x 43 mm |
| Compander | Sennheiser HDX |
| THD, total harmonic distortion | = 0.9 % |
| Weight | (incl. batteries) approx. 195 g |
| Signal-to-noise ratio | = 120 dBA |
| RF output power | switchable: Low: typ. 10 mW, Standard: typ. 30 mW, High: typ. 50 mW |
| Switching bandwidth | up to 88 MHz |
| Peak deviation | ±48 kHz |
| Nominal deviation | ±24 kHz |
| Operating time | Typically 8 h |
| Modulation | Wideband FM |
| Power supply | 2 AA batteries, 1.5 V or BA 2015 accupack |
| Current consumption | at nominal voltage: typ. 210 mA
with transmitter switched off: = 25 µA |
| Input impedance | 68 kO, unbalanced |
| Max. Input voltage | 6 Veff |
| Powering | 3 V battery / 2.4 V rechargeable battery |
| Transmission frequency | Max. 3520 frequencies, adjustable in 25 kHz steps 20 frequency banks, each with up to 32 factory-preset channels, no intermodulation 6 frequency banks with up to 32 programmable channels |
| AF frequency response | 80 – 18,000 Hz |
| Temperature Range | -10 °C to +55 °C |