With DTS function, the coaxial audio cable is connected to the home audio to make the TV output sound quality clearer. After the connection is successful, you need to turn on the external speakers and digital audio output, such as playing high-definition movies with DTS. There will be a display in the lower right corner of the TV with DTS audio track. This cable features high-purity oxygen-free copper wire core, which is low resistance and high transmission, making the sound pure and more lively. Item Name: Audio Cable Material: ABS Core Material: Copper Features: Portable, Connector Cable, Plug and Play Cable Length: 1m/39.37inch;, 2m/78.74inch; (Approx.) Notes: Due to the light and screen setting difference, the item 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Audio Cable