The Snuza Trio Plus is a three-in-one baby monitoring system built around the award-winning Snuza Hero baby breathing movement detection monitor. Wildly popular for its accurate breathing and movement-detection capabilities, the Snuza Hero is a small, lightweight, cordless device that clips onto the baby's diaper for total mobility, requiring no cords, wires or sensor pads (Replaceable Battery Included). It tracks even the slightest breathing motions, and if no breathing movement is detected for 15 seconds, it will vibrate gently in an effort to stimulate the baby to resume moving/breathing. In the event that the baby does not respond to the vibration after 5 seconds, a loud alarm will go off to alert you immediately. In addition to the Snuza Hero, the Trio Plus bundle includes the Snuza Video, which can be used together with or independently of the Hero. This advanced camera features useful safety utilities that help you look out for your baby better than ever before thought possible. These include crystal-clear full-color video with auto-on infrared night vision, 2-way audio that allows you to talk back to your baby, a voice-activation function, a digital zoom function, as well as room temperature monitoring with an alert if the temperature moves outside of the baby's comfort zone. All this is transmitted to the parent monitor unit, which is laden with features like: - 3.5-Inch Color Display - Built-In Speakerphone - Built-In Microphone for Talkback - Camera Pan/Tilt Controls - Volume Controls w/Level Indicator - Camera Zoom Controls - Out-of-Range Warning - Baby Feed Timer - Rechargeable Battery (Included) The Snuza Trio Plus devices communicate using digital wireless technology that ensures zero interference and 100% privacy. The system is expandable with up to 4 cameras, offering you an all-around monitor system for complete peace of mind.