Willcare Baby Monitor Audio with Two-Way Talking, Baby Night Light, Battery Operated Parent Unit and

[Reliable Connection with Your Baby] The monitor uses 2.4GHZ wireless technology, which could provide excellent stable connection and safe private signal. It keeps your transmission secret and secure. It also comes with a Noise-Reduction Microphone, which provides crystal clear sound and eliminates interference like white noise or static.
[Talk-Back Feature & Smooth Night Light] The Parent unit comes with a Talk-Back feature, which could help you Comfort your baby with voice and gives you more freedom in your baby care. The night light on the top of the baby unit could also be used to comfort your baby in darkness. You could control the baby night light on/off remotely with the light button on the Parent unit or the same button on the Baby unit. There is no night light on the top of the Parent unit.
[Smart ECO, Power Saving and Noise Reduction] When the noise in the baby’s room is under 40db for over 20seconds, the smart ECO feature will be enabled and the monitor will eliminate the slight background noise until the noise is over 40db and the monitor will be woken up. In general, the sound of human voice is 60db, bird calls is 44db, and the sound of breathing is 10db. It accurately lets you know when your baby makes a sound. Just trust it!