Audio and video wireless transmission Half-duplex two-way voice intercom The transmission video resolution is 640*480 With pan/tilt rotation function 3.2-inch display screen, resolution 320*240 The camera has built-in lullabies When the camera loses power, it will alarm, the indicator light will flash and a beep sound will be emitted The camera has a sound detection function, which can light up the dormant receiver, while the indicator light flashes and makes a beep sound Support IR CUT, support night vision, night vision distance is 3 meters Lens angle of view greater than 60 degrees (horizontal test) The receiver supports power saving mode with automatic sleep function and four sleep time levels: 1 minute, 5 minutes, 10 minutes, off The receiver has a lullaby playback function and can play 5 lullabies The receiver has ZOOM function, which can enlarge the video image 2 times The receiver has a temperature display function that can display the temperature data wirelessly transmitted by the camera. You can switch between Celsius and Fahrenheit The monitor has a low battery reminder function (specifically refers to the low battery of the monitor lithium battery) The receiver has a reminder function when there is no signal, the indicator light flashes and a beep sound is emitted The receiver is equipped with a lithium battery with a capacity of 1500mAh. It complies with the 62133 certificate Charging time is 2 hours, working time is 5-6 hours The receiver adds cameras through coding The wireless sending and receiving distance is more than 200 meters (open space, no interference, within visual range) With alarm function, camera power failure alarm (indicator light, buzzer) When the LCD is in sleep mode, if there is sound from the camera, it can detect and light up the LCD Specification: Camera: 　 　 Image Sensor: 1/7-inch CMOS GC0308 Camera resolution: 640*480 pixels Field of viewing angle: 60° (horizontal test) Night Vision: ≧5 Lux (IR OFF)/≦2 Lux (IR ON) IR Range: 3~5m Chipset: SN93331C Video Resolution: 640 x 480P/15fps (max) Video Code Rate: 32kbps-3Mbps Audio Compression: PCM Audio Transmission: Two-way voice intercom (Half Duplex) Sound Sensitivity: -47dBm Alarm Mode: Sound detection Wireless Transmission Way: 2.4GHz FHSS+GFSK Transmission Range: 200m in open space Interface: Type-C Power Supply: 5V 1A Working current: 480mA (max) Receiver/Monitor: Chipset: SN93330C Screen Size: 3.2inch color LCD Pixel: 320*240P Audio input: Built-in microphone Power Supply: 5V 1A Working current: 450mA(max) Lithium battery: 1500mAh Size: 120*71*18mm