Parent Unit for 5" Split-Screen Video Baby Monitor HD S2Replace a lost or damaged monitor without buying a full new set. The official Babysense HD S2 parent unit pairs in seconds with your existing HD S2 cameras, restoring split screen viewing, two way talk, and temperature alerts. 5 in 720 p HD display gives sharp day and night video with 2 and 4 digital zoom. Split screen mode shows two rooms at once; swap audio focus with one tap. 4000 mAh rechargeable battery lasts up to 20 h in ECO mode or 12 h in