Features: brand new and high quality Perfect sound quality is fully preserved, with control line output, suitable for a wide range of hosts, strong anti-interference, and good sound quality. Easy to install, adjustable sound . High-quality converter with delay function to eliminate current sound and enhance effect. Efficient conversion, lossless transmission. The sound channel is separated, the input sensitivity is adjustable, and the high-frequency to low-frequency is truly realized. Specifications: Material:ABS Size:Approx.8.5x2.9x4.5cm/3.34x1.14x1.77inches Color:Black Red is connected to the positive poles of 12V power supply. Black is connected to negative poles or ground. White horn anode Leucorrhea black horn negative poles Grey belt black horn negative electrode Gray horn positive poles Package Includes: 1x Converter Adapter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.