Optical Digital Audio, Rca, 3 Point 5 Mm Aux Ported Tvs, Plug And Play, No Audio Product Features [Hassle-Free Set Up] No need to go through the complex Bluetooth pairing process; simply plug the HT4186?s transmitter into a power source and your TV?s audio output port, power everything on, they?ll quickly connect with each other, and you should be good to go. Works brilliantly with older Non-Smart TVs as well. [Universally Compatible] Thanks to Avantree HT4186?s Optical, AUX, and RCA input cables, it is universally compatible and works with all TVs on the market, smart or non-smart. With it, you?ll be able to listen to your favorite movies at your own volume; you?ll no longer have to turn the speaker volume way up and disturb your family or neighbors. [No Lip-Sync Delay] With "FastStream" Bluetooth built-in, the HT4186 provides 40 ms audio latency ? significantly lower and better than the 200+ ms of typical Bluetooth solutions on the market. With this feature, no matter what content you're watching, the audio and visual will always be perfectly synchronized. [Use them Separately] Want to use the 4186 earbuds with your phone? No problem! The earbuds are versatile and can function independently without the transmitter. It is designed with precision-engineered 40mm stereo drivers, delivering powerful yet steady audio quality while ensuring a smooth dynamic listening experience. [Add a 2nd Headphone] The HT4186 supports dual-link audio and allows you to add a 2nd pair of Bluetooth headphones to it. We highly recommend using a headphone that supports FastStream Bluetooth (e.g. Avantree Aria) for the best no-audio-lag experience. (Note: Audio may become off sync if you use a non-FastStream device). Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!