Iten Type: Video Baby Monitor Material: ABS Gross Weight: 781g / 27.5oz Item Number: SM935 Color: White Frequency: 2.4GHz digital Transmission Method: Wireless point to point transmission (short range transmission) Transmission Distance: line of sight about 200 meters Intercom Method: 2 way intercom Night Vision: Infrared vision about 5 meters Screen Size: 3.5 inch LCD screen Display Resolution: 480x272 Camera Pixel: 1080P Detection Method: Voice control power saving mode Battery: Built in 950mAh lithium battery, model 503450(display only) (delivery with built in battery) Detection: Indoor temperature display Language: Multilingual Plug Voltage: 100-240V Package List 1 x Monitor 1 x Camera 2 x Power Adapter 1 x Manual 2 x Expansion Tube 2 x Screw 1 x Bracket 1Infrared Night Vision: With 5m infrared distance, 3.5in LCD screen and IR CUT automatic switching, you are allowed to care your babies in dark and keep an eye on baby all night. 22 Way Intercom: Built in microphone and speaker, you could use the two way talk back intercom function to comfort your babies whenever you want. 3Built in Lullabies: The baby video monitor has a built in 3 minute chord music, which can soothe your baby to sleep. You can also adjust the volume freely as the baby falls asleep. 4Temperature Monitoring: With temperature display, it can supervise baby's room temperature all day, help to care your baby's health. Celsius and Fahrenheit can be switched. 5Wireless Signal Transmission: Wireless point to point digital signal transmission, stable without interference. Through encryption, the digital signal transmission has high security.