CP4 is a control panel used for bus intelligent dispatch system. Adopted with 18 buttons, 7 inches large screen display, it can operate the MDVR menu. Besides, when the driver reverses the bus, it automatically switches from normal recording to the reversing live view. It also integrates with features of SMS and voice broadcast. Moreover, it can realize the functions of speaking inside/outside of the vehicle, IP connection and making calls. It is widely applied to domestic and overseas bus systems for its easy installation, powerful features and convenient operation.