1. Integrated sound card and PTT control two-in-one; 2. Support PTT control; 3. Mini design, the size is only 53x24x14mm (excluding protruding part of USB ); 4. Single 3.5mm plug 4PIN function definition, the definition can be changed by yourself, and different devices can be flexibly connected; 5. Audio and PTT are physically isolated to reduce problem of crosstalk between computers. AUDIO2RIG is an interface device for converting audio and PTT control between computers and radio stations. It has an audio transformer and optocoupler isolation. It is compatible with for , for , for ICOM and other radio equipment. It supports PTT control. The audio uses a USB sound card conversion interface. It is small in size and easy to install. It supports , for Android, and operating systems. Due to different batches, there may be differences in product appearance, color, and printed text, which not affect use. Colour:Black Material:plastic Package Contents: 1 x USB Sound Card Connector Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.