The SC3 is a high-quality shielded adapter for connecting a smartLav to TRS devices (3.5mm) such as a camera or audio recorder. The gold-plated contacts are color coded: Gray indicates the TRRS input. Self-noise (A-weighted) 20.00gm Dimensions 30.00mmH x 10.00mmW x 170.00mmD Compatible Microphones - smartLav