What a piece of junk! Very cheaply priced and I see why now. This thing doesn't amplify much of anything. It arrived defective, only one of the ear pieces worked, to no fault of the seller I'm sure. I bought...
Follow these steps to connect a microphone to a PC-Based DVR: Step 1: Obtain a Siamese (Power/Video) CCTV Cable long enough to connect your microphone to the pink audio input jack on the back of your DVR...