The soundbar’s ID number is engraved on the back of the speaker. Follow these steps to set it on your Samsung TV: Step 1. Press the MENU button on your TV and then select Settings. Step 2. Select Sound -> Smart Audio Output. Step 3. In the ‘Smart Audio Output’ menu, scroll down to ‘Sound Bar(s)’ and select it. Step 4. Tap the entry for your soundbar and then enter its ID number in the box that appears.