Smartisan Bluetooth Car Mount is a smart hardware applied in the car. There are two types, one is applied onto the center console, another is applied on the air outlet. On the top of the product is a magnetic unit which consists of Bluetooth module, the smartphone can be fixed through magnetic force with a round metal sheet on its back. After the smartphone is placed on the plate, it will trigger the button to launch a selected app in the smartphone. We choose anodized aluminum and ABS as main material, which has high texture and endurance. The round button is hidden in an arrayed rubber dot, thus the visual elements is simplified. The process of using a smartphone is also simplified, the action of putting back the phone and opening application is combined as one, which has improved the usability, security and user experience of the car mount product.