About this item Upgraded Version: This Bluetooth AUX adapter receiver is designed for wired audio systems, providing a wireless audio solution for any non-Bluetooth home audio devices or car speakers. No batteries required, easy to use, mini and compact design that takes up no space and is easy to carry. With a connection range of up to 33 feet, you can eliminate cluttered cables and enjoy the convenience of wireless music. Easy to Use & Widely Compatible: Simply plug the 3.5mm AUX cable into the adapter and connect it to the aux jack of your device. Switch to the mode you need (RX/TX) for easy operation. It supports all Bluetooth devices (such as smartphones and tablets) to pair as a hands-free kit, making it ideal for use with your home/car audio system and wired headsets, TVs, PCs, etc. It offers high-definition wireless stereo music and hands-free calling. Excellent Performance Design: This 2-in-1 device functions both as a Bluetooth receiver and a Bluetooth transmitter, enhancing