Ultra-Clear Video Sound: High resolution color LCD screen clearly displays baby's activity. Night vision camera transmits a clear image day and night. 2 Way talkback communication feature which allows you talk to your little one through a mic to comfort your baby. Stable Private Signal: Using 2.4GHz FHSS wireless transmission technology, interference-free signal ensures a private and secure connection. Range up to 980-feet(with no blocks), allowing parents to move freely throughout the house and keep baby in view. Long Battery Life: Rechargeable battery with 950mAh high capacity, provides the parent unit with up to 12 hours of monitoring time on power-saving mode(video off,audio on), 6 hours with the display screen constantly on. Easy to operate: Plug and play, expandable up to 4 baby units, digital zoom for closer views on screen, room temperature display and alarm function, lullabies playing, sound activated LED lights, and low battery and out of range indicators. What You Get: One parent unit (video monitor), one baby unit (camera), one baby car mirror, user manual, our worry-free 24-month warranty and friendly customer service.