Easy to operate: Simply insert the cassette adapter into the car disc player to begin using it with your phone. Built-in microphone: The cassette adapter features a built-in microphone that supports hands-free calling. LED indicator light: Includes an LED indicator for USB charging, making it easy to monitor charging status. Button control design: Equipped with control buttons for manual operation. Bluetooth 5.0: Utilizes Bluetooth 5.0 technology for a stable and convenient wireless connection to your smartphone. Type: Cassette adapter Color: Black Material: ABS Package Contents: 1 x Cassette adapter 1 x USB cable Note: The package includes only the items listed above. Other accessories are not included. Note: Due to light reflection and differences in display screens, the color of the item may vary slightly from the actual product. Measurement may vary by +/- 1-3 cm.