When you have a vintage car with a tape player, the cassette Bluetooth receiver allows you to enjoy music from your smartphone without replacing or modifying the original stereo 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 connectivity. This device enables Bluetooth audio streaming for cars or audio devices without native Bluetooth support. Adjust the audio equalization settings on your player to achieve optimal sound quality. You can answer phone calls and control music playback directly from the receiver. Features include volume adjustment, play/pause, track skipping, and call answering. Compatible with phones, tablets, MP3 players, car stereos, headphones, Hi-Fi systems, portable speakers, and other devices equipped with standard Bluetooth technology. Delivers seamless stereo audio transmission for high-quality sound performance. Built-in rechargeable lithium battery provides up to 8 hours of continuous playback and talk time, with 168 hours of standby time. Full recharge takes approximately 1.5 hours. Advanced chipset ensures stable, fast wireless transmission with low power consumption, delivering superior audio performance for an enhanced listening experience. Specifications: Color: Black Bluetooth Version: 5.0 Battery Capacity: 130mAh Package Included: 1 x Cassette Adapter 1 x USB Charging Cable