The SR-WM4C system features a high-band VHF transmission for clear, rich sound. The included slim and flat omnidirectional lavalier microphone connects to the transmitter with a professional, lockable 3-pin mini-XLR connector, ensuring a solid connection that won’t come loose during recording. Both the transmitter and receiver are lightweight and easy to use; simply plug in the microphones, turn on the power, and you're ready to go. Four switchable channels keep you interference-free and allow you to add more systems to your setup, providing flexibility and functionality while delivering high-quality audio. Each unit runs on 2 AA batteries for up to 5 hours of operation, and the LED display lights up. The receiver also features a headphone output, enabling real-time audio monitoring when your camera lacks a headphone jack. The SR-WM4C system is also expandable. Optional transmitters and output cables are available, offering you unparalleled flexibility. It allows for the addition of a wireless handheld microphone or a wireless plug-on transmitter and connects the RX9 receiver to smartphones, tablets, computers, GoPro cameras, and more.