Digital Modes Interface Radio Connector Highly Integrated USB Audio Chip: Equipped with a DP108T USB audio chip for high-quality sound transmission. Versatile Compatibility: Supports for Windows, for macOS, for Linux, Android, and iOS without the need for drivers. Optical Coupling Isolation: Features optical coupling isolation for clear audio and PTT signals. Audio Input/Output Adjustment: Provides audio input and output level adjustment for optimal sound clarity. Due to different batches, there may be differences in product appearance and printed text, which will not affect use. Specifications:B:open cable KIT/A:Includes FT818 cable Colour:Black Material:FR4 Package Contents: 1 * Radio Connector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.