Features: 3.5mm revolutions female screw is fixedly installed, and the input or output configuration of 3.5mm music system provides a stable signal transmission environment. 3.5mm Plugs thread is used to fix the installation line. Just open a 18.5mm hole on the surfaces of the unit board, and then fix it The thickness of the mounting plate is20mm. The product is equipped with a waterproof and dustproof cover to prevent dust, rain and sundries from entering the port when idle. The product is suitable for expanding 3.5mm stereo port in automobiles, trucks, boats, yachts, furniture and mechanical equipment. Used to connect phones, laptops, tablets, computers, MP3, MP4 and headphones. Crafted from quality, heat resistant plastic materials, this cable not only extends product lifespans but also ensures safety, making it a addition to any music setups. Specifications: Component:Plastic Color:Black Length:Approx.30cm/11.81in Option Type: 3.5mm Male to Female Cable,3.5mm Female to Female Cable, Note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color. Package includes: 1pc 3.5mm TRS Panel Cable