TranzIt BLU HF from iSimple is a Bluetooth hands-free calling kit with audio streaming so you can play audio from your smartphone through your vehicle's sound system. The kit includes a convenient, low-profile, dash-mountable control button for controlling your streaming music, answering calls and launching your phone's VR functions. This device is engineered to connect to any radio in any vehicle. It features a 3.5 mm audio output for connecting into any vehicle's aux audio input for optimum sound quality, but also has standard Motorola-style antenna connections which allow for installation into any radio with a standard connector FM antenna, even 12-volt amplified antenna systems. Vehicles with different antenna connectors will require antenna adapters (sold separately.) Professional installation is recommended.