What is this?The mono audio plug is suitable for mixers, amplifiers, sound engineering, and headphone/headset wiring modifications, quickly connecting 3.5mm audio signals to the terminal block. It's also suitable for CCTV cameras, microphone plugs, and other DIY and external audio equipment.What will I get?Type: 3.5mm TS Mono Male to 2 Pin Screw TerminalMaterial: Plastic, BrassColor: BlackOverall Size: 1.61 x 0.55 x 0.