Handheld transmitter with a lightweight aluminum housing and integrated mute switch for evolution wireless G4 100 Series systems. Your choice of Sennheiser‘s renowned e 835, e 845, e 865, e 935, e 945 capsules. Easy and flexible wireless synchronization between transmitter and receiver via infrared. Fast frequency allocation for up to 12 receivers via new linking functionality. Up to 20 compatible channels. Stable UHF range. Transmission Range: 100 meters. High RF output power (up to 30 mW). Package includes: SKM 100 G4-S handheld transmitter, MZQ 1 microphone clamp, 2 AA batteries, manual. Weight: 450 g. Frequency: 516 - 558 MHz