Why do you need me? When you have a vintage car with a tape player, the cassette Bluetooth receiver lets you enjoy music from your phone without replacing or modifying your car's original system. Premium Sound Quality for Music: The cassette Bluetooth 5.0 receiver is compatible with most smartphones and ideal for home or car o systems. This Bluetooth receiver works with cars or devices that lack built-in Bluetooth, allowing them to receive wireless o signals. Adjust the o equalization settings on your player to enjoy high-quality music playback. Easy Control for Music: Answer phone calls or control music directly from the receiver. Adjust volume, play/pause, skip tracks, and answer calls. Supports phones, tablets, MP3 players, car stereos, headphones, Hi-Fi systems, portable speakers, and other devices with standard Bluetooth technology. Seamlessly transmits stereo o for high-quality sound, allowing you to enjoy music anytime, anywhere. Extra-Long Play Time: Built-in battery provides up to 8 hours of play and talk time, with 168 hours of standby time. Fully charges in just 1.5 hours. Premium chip ensures stable, fast transmission with low power consumption, delivering superior o performance for an enhanced listening experience. What You Get: 1 x Bluetooth 5.0 Receiver Cassette Adapter, 1 x User Manual, 1 x Customer Service Card. 16-month replacement available for any product issues— directly for support.