Audio-Technica's new 1800 Series ATW-1811 camera-mount wireless microphone systems provide extremely flexible, professional and easy-to-use portable wireless solutions. It features automatic frequency scanning, Tone Lock squelch, back-lit LCD, soft-touch buttons, headphone monitor output with independent level control, and durable metal construction.

Audio-Technica ATW-1811 Wireless Microphone System Operating Range: 328.08 ft Signal to Noise Ratio (SNR): 104 dB Operating Range: 328.08 ft Signal to Noise Ratio (SNR): 104 dB XLR: Yes Maximum Operating Frequency: 680.38 MHz Maximum Frequency Response: 15 kHz Minimum Frequency Response: 70 Hz Minimum Operating Frequency: 655.50 MHz Maximum Operating Frequency: 680.38 MHz