Sennheiser ew 300 G4 Base SKM-S GW Band, HF Wireless System, Includes a SKM 300 G4-S handheld transmitter with mute button (without capsule), and a EM 300-500 G4 9.5"" receiver, Frequency range: GW Band (558 - 626 MHz), 88 MHz Switching bandwidth, 20 Channel banks with up to 32 presets each, Up to 32 compatible channels, Network connection for frequency management and control via software WSM (Wireless System Manager), Frequnecy response: 25 - 18,000 Hz, Frequency transmission via infrared interface, Handheld transmitter with charging contacts for optional BA 2015 battery (NiMH), Pilot tone, Automatic frequency scan feature locates available frequencies, Integrated EQ, Audio gain: 60 dB, Soundcheck mode, 4-Digit battery indicator on the transmitter and receiver, HDX compander, LCD display with AF / RF level and channel display, Switchable transmission power: 10 / 30 / 50 mW, 2x BNC antenna sockets, XLR male balanced and jack unbalanced, Power supply: 10.5 - 16 V DC, Suitable capsules: Sennheiser EW, Neumann, and MD 9235 (not included, must be ordered separately), Incl. a GA 3 rackmount, RJ10 connector cable, microphone holder, NT2 power supply, and 2x AA batteries