The SKM 100 G4 is Sennheiser’s entry-level Evolution Wireless G4 handheld transmitter supplied on its own, without a microphone capsule. It is the transmitter you buy when you need a spare, a replacement, or an extra handheld for an existing EW G4 receiver. Band variant: GBw, UK CH38 licence-exempt.
Note — transmitter only, no capsule
This is the SKM 100 G4 handheld transmitter body only. It does not include a mic capsule or a receiver. Add a compatible Sennheiser MMD/MMK/MME capsule head to complete it, and pair with any EW 100 G4 receiver in the matching GBw band.
Key Features
✓Handheld UHF transmitter with threaded capsule interface
✓All-metal handheld body
✓1680 selectable UHF frequencies
✓IR one-button sync from an EW 100 G4 receiver
✓HDX compander
✓Runs on 2× AA batteries, approx. 8 hours
✓Compatible with Sennheiser MMD/MMK/MME capsule heads
✓UK band GBw, licence-exempt on Channel 38
Specifications
| Series | Sennheiser Evolution Wireless 100 G4 |
| Type | Handheld transmitter (no capsule) |
| Model | SKM 100 G4 |
| Capsule interface | Sennheiser MMD/MMK/MME thread-on |
| UK band | GBw (Channel 38 licence-exempt in the UK) |
| Switching bandwidth | up to 42 MHz |
| Selectable frequencies | 1680 |
| Modulation | Wideband FM |
| Compander system | Sennheiser HDX |
| 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 |











