The ML1-WSF is a low cost, IP54 rated , omni-directional electret microphone for use with IP cameras accepting microphone level input signals (PC compatible input). The ML1-WSF mounts in a standard 1/2" electrical knock out hole. The attached cord is 6' long and comes standard with a stereo 3.5mm connector on one end. Add -FL to the P/N for a flying lead output for connections to cameras with terminal blocks.