With a Bluetooth cassette adapter, your cassette player immediately becomes a wireless Bluetooth cassette recorder. No complex installation. No wires. No wrapped or wrapped tape. As long as you open it, it will automatically open. Thanks to the built-in microphone, you can safely place your hand on the steering wheel while driving, activate the hands-free function of your phone, and easily and conveniently answer calls and listen to sound. Install Bluetooth CSR chip version 5.0 for quick and seamless connection, and automatically reconnect upon startup. The blue/red flashing indicates that pairing mode is enabled. After successful coupling, blue light flashes once every 5 seconds, which has the advantages of longer distance and lower power consumption. The tape adapter Bluetooth includes a durable battery, suitable for long-distance travel. Through Bluetooth functionality, you can listen to music while charging, as the charging port, switch, and microphone button can be placed outside the cassette drive. Used for your car or home system. Stream music from any Bluetooth enabled device, such as iOS, Android based electronic devices, tablets, etc.