Features: Smart Vox Mode: When the noise in baby room is under 40db for over 20seconds vox will be enabled and the monitor eliminate slight background noise until the noise over 40db and the monitor will be woke up. It accurately let you know when your baby makes any sound. Automatic Tracking: High-sensitivity motion detection that moves the tracking of moving objects. Until it disappears from the effectiveness of the monitoring. Two-way Audio:Build-in micro microphone and speaker you can talk easily through your wireless monitor allowing you to comfort your baby in time. Wireless Transmission: Digital signal transmission that is stable and free of interference and the transmission is encrypted and safe. Night Light: This audio baby monitor has a night light that can be controlled from a distance making it easier to use and more convenient. Specifications: Material: ABS Network Supply Method: WIFI Wireless Plug Type: US Plug Package Included: 1*Parent Unit 1*Baby Unit 1*Adapter 1*Portable Cable 1*Cable for Adapter 1*User Guide Notes: Please note that due to the influence of light and screen slight chromatic aberration is acceptable. Please allow 1-3cm error due to manual measurement. includes: 1*Parent Unit 1*Baby Unit 1*Adapter 1*Portable Cable 1*Cable for Adapter 1*User Guide "