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. - The Cassette Bluetooth 5.0 receiver is compatible with most smartphones and works well with home or car audio systems. This Bluetooth receiver is designed for cars or devices that do not have built-in Bluetooth capability. Adjust the audio equalization settings on your player to enjoy high-quality sound. - You can answer phone calls or 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 an enhanced listening experience. - Built-in rechargeable lithium battery provides up to 8 hours of playback and talk time, with 168 hours of standby time. Fully charges in 1.5 hours. Advanced chip ensures stable, fast transmission with low power consumption for superior audio performance. Specifications: Color: Black Bluetooth Version: 5.0 Battery Capacity: 130mAh Package included: 1 x Cassette Adapter 1 x USB Charging Cable