USB to AUX Bluetooth Car Adapter - The USB to AUX Bluetooth receiver allows you to turn any device with a 3.5mm jack connection into a Bluetooth speaker. If your car radio has a jack input, this Bluetooth transmitter can be used as a car kit. Besides this the adapter has many more handy functions. | Music Listening and Audio Playback - Music and navigation sound can be played through your car speakers thanks to the Bluetooth connection. To ensure the best sound quality, we recommend controlling the volume via your phone and setting the volume of the car speakers as low as possible. Increase the volume of the car speakers only after your phone is at maximum volume. | Hands-free Calling - Thanks to the built-in microphone, this Bluetooth car adapter allows you to make hands-free calls through your car speakers. Once your phone is connected to the adapter, the sound of the call is played through the car speakers and your voice can be heard through the microphone. | Multifunctional Bluetooth Adapter - In addition to in-car use, the AUX Bluetooth receiver can be used in many more situations. The transmitter is compatible with speakers, receivers, TVs and other playback devices, if a USB-A connector is present for power and the playback device has a 3.5mm jack connector. This makes it one of the most convenient adapters on the market. | Installing the Bluetooth Radio Adapter - Installing the Bluetooth transmitter is very simple. Insert the USB-A plug of the adapter into a USB-A port of a power source to power the transmitter. Then insert the AUX cable into the 3.5mm jack of the playback device. The adapter is now ready to connect via Bluetooth to your Bluetooth device.