Sennheiser ew 100 G4-935-S A-Band, UHF Wireless System@+*Handheld transmitter: SKM 100 G4-S*@+@+, Mute switch, E935 interchangeable capsule, Frequency range: A-Band (516 - 558 MHz), Transducer principle: Dynamic, Directional characteristic: Cardioid@+*9.5