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