**Product Description** - **Superior Sound Quality with Advanced BT 4.0 & AptX Technology** Equipped with an **internal BT 4.0 module with EDR and AptX technology**, this wireless audio adapter delivers **high-fidelity sound with minimal latency**. Enjoy **crystal-clear audio and deep bass** for an immersive music experience while driving. - **Built-in Noise Reduction Circuit for Clear, Distortion-Free Sound** Featuring an **advanced internal noise reduction circuit**, this adapter effectively **filters out background noise and interference**, ensuring **exceptionally clear and uninterrupted sound quality** for music playback and hands-free calls. - **Dual Device Connection for Seamless Switching** The wireless audio adapter supports **simultaneous connection of two devices**, allowing you to **switch between different smartphones or tablets effortlessly**. Share your music or take turns playing songs without the hassle of reconnecting. - **Automatic Reconnection for Convenience** Designed for **effortless use**, this adapter **automatically connects to the last paired device** when the car starts up. No need for manual reconnection—just start your engine and enjoy instant access to your favorite playlists. - **Versatile USB & BT Mode with U-Disk Music Support** This adapter not only supports **wireless BT streaming** but also allows you to **play music directly from a U-disk**. Additionally, it features a **USB charging port for smartphones**, ensuring your device stays powered during your journey. Easily **switch between USB mode and BT mode** with a simple button press for ultimate convenience. Upgrade your car’s audio experience with this **high-performance wireless music adapter**. With **superior sound quality, noise reduction, dual-device pairing, auto-reconnection, and versatile playback options**, it is the perfect accessory for **seamless and enjoyable in-car entertainment**.