... on, easy to install DVR/radar/camera/ bus rearview mirror 4.3 inch rearview mirror with GPS, FM, Bluetooth Handsfree, multi-media ... band, Ku band and laser2. Voice alert is adjustable on 4 levels of volume: loud, medium, quiet and mute3. City/Highway ... detector, Wireless AV transmitter, SD card, Line of cigarette lighter. 4.3 inch Rearview Mirror GPS with DVR,Radar,Camera