... 2 Way Video Inputs, V2 Auto-reverse for Camera, Mobile Bluetooth is Optional, Original Fit Car Bracket is OptionalSIZE 4.3" System PAL ... to rear view systemSpecial anti-glaring glasses for eye sight protectionSame size with original car rearview mirrorDVRVideo input 1 Video output 1Audio ... s after returned;6, Press front switch to make front camera working all time till other acction is done. Then ...