" [TV COMPATIBILITY] The Avantree HT41899 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 HT41899 Plus, you'll be able to listen to your favorite TV shows & movies at your own volume without disturbing those around you. [USING WITH SMART TVS] For Smart TVs with built-in Bluetooth (e.g., 2024 Samsung TVs), the HT41899 Plus headphones can pair directly via Bluetooth. In this case, slide the transmitter to 'OFF' because there is no need to use the transmitter. [SHARE THE TV AUDIO] Connect the transmitter to your TV and listen through both headphones simultaneously, each with built-in volume controls so you can listen at your preferred volumes. [POWERED BY QUALCOMM] With its advanced Qualcomm chipset, the HT41899 Plus delivers clearer sound, stable connections, and perfectly synced audio & visual – all backed by Avantree's 20+ years of Bluetooth expertise. [CLEAR, BOOSTED SOUND] Catch every word with boosted volumes and a Clear Voice Mode that helps you hear on-screen dialogue more clearly. [LIGHTWEIGHT COMFORT] Weighing less than 200g and with soft, adjustable headbands and plush, spacious earpads, the HT41899 Plus headphones stay comfortable all day long. [EXTENDED PLAYTIME] Listen uninterrupted for up to 50 hours."