When you have a vintage car with a tape player, the cassette Bluetooth receiver lets you enjoy music from your phone without modifying the original audio system. - The Cassette Bluetooth 5.0 receiver is compatible with most smartphones and works well with home or car audio systems that lack built-in Bluetooth. This device enables Bluetooth audio streaming for cars or devices without native Bluetooth support. Adjust the audio equalization settings on your player to enjoy high-quality sound. - Answer phone calls and control music playback directly from the receiver. Features include volume adjustment, play/pause, track skipping, and call answering. Supports phones, tablets, MP3 players, car stereos, headphones, Hi-Fi systems, portable speakers, and other devices with standard Bluetooth technology. Delivers seamless stereo audio transmission for clear, rich sound. - Built-in rechargeable lithium battery provides up to 8 hours of continuous play and talk time, with 168 hours of standby time. Fully charges in 1.5 hours via USB. Advanced chipset ensures stable, fast wireless transmission with low power consumption for reliable performance. Specifications: Color: Black Bluetooth Version: 5.0 Battery Capacity: 130mAh Package included: 1 x Cassette Adapter 1 x USB Charging Cable