When you have a vintage car with a tape player, the cassette Bluetooth receiver lets you enjoy music from your phone. You don’t need to replace or modify your car’s original audio system. - The Cassette Bluetooth 5.0 receiver is compatible with most smartphones and works with home or car audio systems. It is a compact Bluetooth receiver for devices without built-in Bluetooth capability. Adjust the audio settings on your player for optimal sound. - Answer phone calls and control music directly from the receiver—adjust volume, play/pause/skip tracks, and answer calls. Compatible with phones, tablets, MP3 players, car stereos, headphones, Hi-Fi systems, and portable speakers equipped with standard Bluetooth technology. Delivers seamless stereo audio for high-quality sound. - Built-in rechargeable lithium battery provides up to 8 hours of playback and talk time, and 168 hours of standby time. Fully charges in 1.5 hours. Advanced chip ensures stable, efficient transmission with low power consumption for enhanced audio performance. Specifications: Color: Black Bluetooth Version: 5.0 Battery: Rechargeable lithium battery, 130 mAh Package includes: 1 x Cassette Adapter 1 x USB Charging Cable