[Wireless Audio Adapter] - This wireless audio receiver allows you to wirelessly stream your favorite music from smartphones, tablets, and laptops to your wired speakers, car stereos, and headphones. The Bluetooth receiver for stereo systems is perfect for upgrading all your wired speakers and older stereo systems to a Bluetooth-enabled speaker. [Bluetooth 5.0 Audio Receiver] - Equipped with the latest Bluetooth 5.0 chip, the transmission efficiency is faster and more stable. Pair your Bluetooth smartphone and tablet via the convenient pairing button. The device will automatically reconnect when it is within range. [Bluetooth Receiver with Multifunctional Encoder] - The encoder of this wireless Bluetooth adapter can be used to pause or play music, choose to play previous or next music, and control the music volume. All in one, so you can easily control music directly on the Bluetooth adapter instead of directly on smartphones or any other audio source. [3D Surround Sound] - Our bluetooth adapter turns your wired speakers into Bluetooth speakers and provides a 3D surround three-dimensional surround sound experience, allowing you to enjoy the sound effects of a theater at home. Note: This is a Bluetooth receiver (for speakers), not a transmitter (not for TV)