About this item Push To Talk Connect with your smartphones assistant with a push of a button. Linked via Bluetooth, this unit allows you to access information, accept commands, and keep driving safely. Bluetooth - Answer or make calls and enjoy hands-free operation with no distractions. The built-in microphone picks up your voice, and your car speakers ensure you hear the person on the other side clearly. Play and control your music and apps like Spotify and Pandora wirelessly. Inputs USB, USB charging, Aux Outputs - Use the front and rear pre-amp outputs to hook up your speakers (front left / front right & rear left / rear right) Dimensions: 5 x 7 x 2 inches