HelloBaby HB30 Video Baby Monitor is a plug and play wireless baby monitor that uses the exclusive patented 2.4GHz wireless technology FHSS (Frequency Hopping Encryption Technology) for transmission. It radiates less than WiFi, is more resistant to interference and transmits more consistently. Hellobaby has been manufacturing baby monitors for over 10 years and is trusted by millions of American mothers. What's more? You can get an audio baby monitor for the price of an audio baby monitor 2.4" LCD screen, the camera is equipped with 8 IR LEDs and a light sensor. At night, you'll see crystal clear black and white contrast video that won't disturb your baby's sleep. When you are in another room, the automatic night vision feature provides a clear live stream. Wifi is not required and no app settings are needed. In addition, this baby camera is expandable to 4 cameras (including 1 camera) and 2x zoom. It can be manually rotated 360° horizontally and 120° vertically. The extra-long standby charge and power-saving mode automatically turns on and off for easy remote operation at home or when travelling. You can see live video on the HelloBaby baby monitor, providing a safe and private live stream you can trust for your baby. No matter what room you are in, you are the only one who can hear and see your baby.