Enjoy flawless Tv audio with your favorite Auracast headphones with the Sennheiser BTA1 Tv Transmitter. Plug it into almost any Tv or audio receiver using the Hdmi, optical, Usb, or analog port and get crisp, low-latency Bluetooth Le headphone sound without pairing headaches or lip-sync issues. Speech Clarity lifts voices, Virtual Surround Sound gives you a cinematic experience, and Normalized Volume smooths volume spikes. Setup is easy. Once you ve paired your headphones, the transmitter auto-reconnects and selects the right input each time. Auracast broadcast mode lets unlimited Auracast headphone listeners choose their own volume and settings.