Usage Tips: BlueMusic audio adapter for wireless transmission of music, navigation announcements, YouTube, etc. Title control on the radio/steering wheel. Playback starts automatically when you select the radio, stops when you switch to another source. Telephony is not possible via the adapter (please use an adapter with microphone for this). Developed in Germany. Integrated amplifier for optimal audio enjoyment. Supports up to Bluetooth 5.0 for low power consumption. Integrated antenna for stable connection throughout the vehicle. Installation: Minimal installation effort. The adapter is connected invisibly to the back of the radio. For stem with 4:3 on-board monitor in trunk near radio module. No additional wiring required for power supply. The radio automatically recognizes it as a CD changer, no coding required. Product Specification: 3 cm Color: Black Product List: 1 * Music Adapter