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. This Bluetooth receiver is designed for cars or devices that lack built-in Bluetooth capability. Adjust the audio settings on your player to enjoy your favorite music. - Answer phone calls or control music playback directly from the receiver. Features include volume adjustment, play/pause, track skipping, and call answering. Supports smartphones, tablets, MP3 players, car stereos, headphones, Hi-Fi systems, portable speakers, and other devices with standard Bluetooth technology. Delivers stereo audio transmission for high-quality sound performance. - Built-in rechargeable lithium battery provides up to 8 hours of play and talk time, with 168 hours of standby time. Fully charges in 1.5 hours. Advanced chip technology ensures stable, fast transmission with low power consumption for enhanced audio performance. Specifications: Color: Black Bluetooth Version: 5.0 Battery Capacity: 130mAh Package included: 1 x Cassette Adapter 1 x USB Charging Cable