The PH4-TS is the first multi-channel touch screen dash cam with the ability to record up to 4 camera angles at one time.  The monitor allows for real-time playback of what is being recorded.  The PH4-TS also allows you to channel through each camera, or have all 4 angles on the screen simultaneously.  The PH4-TS is the perfect solution for viewing recorded and having eyes on all corners of your vehicle at all times.