Power Source: ElectricDisplay type: ColorFeature: Portable,LCD Display,Nightvision,MusicIs Batteries Included: YesAlert type: Out of RangeIs Batteries Required: NoTemperature monitoringBuilt-in 8 lullabies in the cameraAutomatic night visionSecure, interference free, long range digital signalHigh contrast 2.0? color LCD monitorLong battery life (8 hours in Vox mode)Multiple languages support(English/French/Spanish/Italian/German)Built-in lullabies may help the parent comfort the baby fall into a sleep.Know your baby's room temperature all the day long without worries!Transmission Frequency: ISM 2400~2483.5 MHzTransmission Power: 17dBmUnobstructed Effective Range: 160ft/50m indoor/850ft/260m outdoor, line of sightOperating Temperature:  14 ~ 122° Fahrenheit/- 10 ~ 50° CelsiusOperating Humidity:  LCD Size:  2.0?Resolution Supported:  220 x 176Receiving Sensitivity:  -90dBmConsumion Current (Max.):  150mABattery:  Li-polymer / 400mAh,3.7VPower Supply:  5V/500mA DCImage Sensor:  CMOSTotal Picture Pixels:  320 x 240pxlMinimum Illumination:  0 Lux (IR on)Night Vision Distance:  15 FT (5m)View Angle:  Diagonal 31°Power Consumion (Max.):  100mA