Wireless Audio Adapter: This wireless audio receiver allows you to wirelessly transmit your favorite music from smartphones, tablets and laptops to your wired speakers, car stereos and headphones. The Bluetooth Receiver for Stereo System is perfect for upgrading all your wired speakers and older stereo systems to a Bluetooth enabled speaker. Bluetooth 5.0 Audio Receiver: With the latest Bluetooth 5.0 technology, this Bluetooth audio receiver provides faster transmission and lower latency, eliminates Bluetooth audio delay, provides superior audio quality for your old analog amplifiers, home audio systems and vehicle. Has powerful wireless audio streaming capabilities, enjoy music wirelessly anytime, anywhere. 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 volume of music. All in one, so you can easily control music directly on the Bluetooth adapter instead of directly on smartphones or other audio sources. HiFi and 3D Surround Effect: Press "3D" button to turn 3D surround effect mode on and off, you can enjoy surround sound effect with high fidelity from normal audio source. The "3D" button can also be used to switch between wireless mode and TF card mode. This Bluetooth audio adapter gives you a wonderful sound experience for your home/vehicle. Plug and Play: Easy to set up and connect with Bluetooth, and it can automatically reconnect to previously paired devices. Use a Type C cable to connect to nearby USB devices to power this Bluetooth music adapter. With the included 3.5mm AUX cable and RCA cable, this audio adapter can be used on stereo systems, speakers, headphones. And you can insert TF card to play music from TF card directly.