For easy Bluetooth retrofitting of vehicles with AUX-In for wireless music transmission via Bluetooth 5.1 from mobile devices to car audio systems. Supports existing voice assistants Siri and Google Assistant: direct access with the push of a button and Bluetooth pairing, without needing to hold the smartphone. Amplifier for powerful bass. Hands-free function via integrated microphone; sound playback through speakers. Integrated battery for power supply without a cumbersome charging cable. Packaging with a clear conscience: Our packaging is 100% plastic-free – reducing plastic waste and increasing recyclability. FSC certified: The paper, cardboard, and packaging materials come from sustainable forestry management – ensuring responsible use of the wood resource. Integrated analog output (3.5 mm jack) for connecting to the AUX-In in the vehicle, allowing you to simply play music from your mobile device, such as a smartphone, and enjoy better sound from the car audio system. Bluetooth connection and hands-free function in one adapter thanks to the integrated microphone. Built-in Li-Polymer battery, so no separate power supply is required. Up to 12 hours of operating time. 2 multifunction buttons for answering or ending calls and controlling music. Music control: Play/Pause, next/previous track, volume up/down, bass boost. Easy operation in two steps: turn on the Bluetooth receiver and connect. Also suitable for a wireless Bluetooth connection with speakers, amplifiers, etc. Compatible with many apps. Comes with a USB-C cable for charging via a USB charger or PC/laptop. Compact and robust housing made of aluminum and plastic.