Upgraded Rechargeable Battery: The parent unit is equipped with 3500mAh battery, which can work continuously for 16 hours with the screen. And with power saving mode, it can also support you a whole day(up to 30 hours). 100% Privacy and Security Guarantee: The baby monitor is transmitted via 2.4GHz protected internal channel without video latency. And the monitor is plug and play without WiFi and any APP, which is safer and more stable. Two-way Audio & Night Vision: You can talk to your child as clearly as if you were in the same room in real time via the two-way talk function. The automatic infrared night vision provides a clear view of the children's room even with the lights off, so you can keep your eyes on the baby all the time. Remote Pan, Zoom and Tilt: This baby camera can rotate 320°horizontal/120° vertically from the parent unit, expanding the control view as large as possible. You can also use the parent unit to zoom in and out to better observe the baby's movements. ECO mode: The monitor is equipped with ECO mode, which will not disturb your sleep in the dark. When ECO mode is on, the screen will automatically turn on when a baby's cry is detected. And when the environment is quiet, the screen will remain black. ECO mode will extend the battery life of the screen.