Transform your audio experience with the Lavalier Bluetooth 4.1 Audio Receiver, designed to bring modern connectivity to your non-Bluetooth car and home stereo systems. Universal Bluetooth Compatibility: This adapter is perfect for non-Bluetooth car and home stereo systems with a 3.5mm auxiliary jack. It supports Bluetooth connectivity, allowing you to stream music, use GPS, and make hands-free calls with its built-in microphone. Hi-Fi Surround Sound: Enjoy high-fidelity surround sound by making your car's auxiliary audio system and home theater Bluetooth compatible. Stream music from a wide range of Bluetooth devices, including iOS, iPad, iPod, HTC, Samsung smartphones, PCs, laptops, tablets, and more. Extended Battery Life: Experience uninterrupted music streaming and phone calls with up to 7 hours of battery life. The receiver charges fully in just 1.5 hours, and you can connect two Bluetooth devices simultaneously to enjoy music without missing any calls. Superior Sound Quality: Unlike other adapters with dim and quiet sound, this miniature Bluetooth adapter features a special quality chip that enhances sound quality, delivering excellent audio performance that makes driving more enjoyable. Easy Plug-and-Play: Simply use the 3.5mm jack to connect to any active PC speakers, car and home stereo systems, or A/V receivers. The receiver comes with a user manual, allowing you to easily play, pause, skip music, answer calls, redial the last number, or control music directly from the receiver. Upgrade your audio setup with the Lavalier Bluetooth 4.1 Audio Receiver and enjoy seamless connectivity, superior sound quality, and the convenience of hands-free operation.