TV COMPATIBILITY The Avantree HT5009 Plus supports TVs with optical (TOSLINK), AUX (3.5mm), or built-in Bluetooth audio outputs. Before purchasing, confirm that your TV has one of these options. With the HT5009 Plus, you'll be able to listen to your favorite TV shows & movies at your own volume without disturbing those around you. Note: If connecting via optical, set your TV s audio output to PCM / Stereo for optimal sound performance. USING WITH SMART TVS For Smart TVs with built-in Bluetooth (e.g., 2024 Samsung TVs), the HT5009 Plus headphones can pair directly via Bluetooth. In this case, slide the transmitter to 'OFF' because there is no need to use the transmitter.