The SK 500 G4 is Sennheiser’s pro-tier Evolution Wireless G4 bodypack transmitter — supplied on its own for expanding an existing EW 500 G4 system or replacing a lost unit. 3.5 mm locking input for lavalier, headset or instrument cable. Band variant: GBw, UK CH38 licence-exempt.
Note — transmitter only
This is the SK 500 G4 bodypack transmitter only. It does not include a microphone, cable or receiver. Pair with any EM 500 G4 receiver in the matching GBw band, and add a Sennheiser EW-compatible lavalier, headset or instrument cable.
Key Features
✓Metal-bodied bodypack transmitter
✓3.5 mm locking jack input (Sennheiser EW bias)
✓Up to 88 MHz switching bandwidth
✓IR one-button sync from EM 500 G4 receiver
✓HDX compander
✓Selectable 10 / 30 mW RF output
✓Runs on 2× AA batteries, approx. 8 hours
✓UK band GBw, licence-exempt on Channel 38
Specifications
| Series | Sennheiser Evolution Wireless 500 G4 |
| Type | Bodypack transmitter (no mic, no receiver) |
| Model | SK 500 G4 |
| Input | 3.5 mm locking jack, Sennheiser EW bias |
| UK band | GBw (Channel 38 licence-exempt in the UK) |
| Switching bandwidth | up to 88 MHz |
| Modulation | Wideband FM |
| Compander system | Sennheiser HDX |
| AF frequency response | 25 Hz – 18 kHz |
| RF output power | 10 / 30 mW (Low / Standard), switchable |
| Power | 2× AA alkaline (or BA 2015 accupack) |
| Runtime | approx. 8 hours on alkaline AA |
| Operating temperature | −10 °C to +55 °C |











