Nowadays, the multimedia systems of many vehicles are equipped with Bluetooth phone function. Before we leave the car, we connect the Bluetooth of the mobile phone to the car phone. When we receive a call while driving, we can easily choose to answer or hang up through the buttons on the steering wheel. In this process, hands can't leave the steering wheel, which can affect driving safety to a lower extent. Some friends may say that there is no car multimedia system, or the multimedia system has no telephone function, so you can buy a Bluetooth headset to solve it easily. Wear headphones when driving, and press the answer button when you have a phone call. And Bluetooth headsets are more private than car phones. Arriving in a strange place, unfamiliar with the road conditions, it is easy to get tickets. If there is no electronic dog in your car at this time and some driving software with electronic dog is not installed on your mobile phone, then your mobile phone can become a cloud electronic dog.

Why bring the word "cloud"? Because the mobile phone can also be connected to the internet, it has the function of displaying road conditions in real time. Of course, compared with the traditional radar detection electronic dog, although the mobile phone has more cloud function, it lacks mobile speed measurement. If you drive safely enough and don't exceed the speed limit (or advocate speed limit), whether there is radar detection function is second. Similarly, the mobile phone is an electronic dog, because it consumes a lot of electricity to connect to the Internet and turn on GPS. It is best to connect the power cord to use it.