2.4GHz wireless transmission/Outdoor distance up to 200 meters/3.5-inch display screen, camera with shaking function, 120 degrees up and down, 355 degrees left and right/two-way intercom/invisible light night vision function/temperature display/embedded probe/temperature alarm/image zoom in and out/image digital pan/multiple transmitter image preview function/power saving mode (voice activation)/lullaby playback/adjustable volume and brightness/no signal alarm/low power alarmFrequency: 2400-2483.5 MHzImage sensor: 1/6 CMOSCMOS pixels: 640*480Frequency: 2400-2483.5 MHzTFT LCD screen: 3.5"Effective pixels: 320x240Demodulation mode: GFSFrame rate: up to 25 fpsPower adapter: Input: 100-240 V, 50/60Hz; Output: 5 V, 600 mA;Built-in lithium-ion battery: 1200mAhStandby time: up to 15 H in eco modeTransmission power: 18+/-1dBmConsumption current: 100 mADisplay color: full color;Operating temperature: 0 ~ 40CHumidity: 5-90% RH