- Upgraded Bluetooth AUX Adapter: Transform your wired audio systems into wireless ones. Perfect for any non-Bluetooth home audio devices or car speakers. No batteries needed; its compact design makes it portable and space-saving. Enjoy the freedom of wireless music with a connection range of up to 33 feet. - Wide Compatibility: Simply plug the 3.5mm AUX cable into the adapter and connect to your device's AUX jack. Switch between RX (receiver) and TX (transmitter) modes for easy usage. Compatible with all Bluetooth devices, including iPhone, iPad, Samsung, and other Android smartphones. Ideal for enhancing your old home or car audio systems, wired headsets, TVs, and PCs, providing high-definition wireless stereo music and hands-free calling. - Versatile Functionality: This 2-in-1 Bluetooth receiver and transmitter adapts to your needs. Easily switch modes with a simple button press, allowing you to meet various usage requirements. Answer, cancel, or end calls effortlessly, ensuring safe driving. The device also supports voice navigation from your mobile phone. - Reliable Performance: Equipped with the latest V5.0EDR technology and high-definition audio capabilities, this adapter ensures stable connections, quick transmission, and reduced noise with low latency for excellent sound quality. The built-in high-definition microphone enables clear hands-free calls, while CVC noise reduction technology enhances call clarity. Features automatic pairing and dual connection for seamless music sharing. - Practical Use Scenarios: - Connect your smartphone to your car's audio system for hands-free calls and streaming music during road trips. - Upgrade your home audio system by linking your tablet or laptop for a wireless listening experience. - Use it with wired headphones or speakers to enjoy high-quality music without the hassle of tangled cords.