The extension of audio stereo and microphone up to 300 meter away by using the Audio Extender and one CAT5 cable. Audio Out supports multimedia speakers and Headphones or Earphones. Mic In supports Condenser Microphone and Dynamic Microphone. Built-in Microphone preamplifier. Microphone gain can be adjustable.

Compliant with the composite RCA Video. Video input impedance: 75 Ohms. Compliant with the RCA Audio. Audio input impedance: 10K Ohms. Audio Frequency Response 20Hz~20KHz. Extends the signal up to 20 meter. Can be cascaded.