Features:7inch TFT LCD, no radiation, low power consumption, high definition wide screen image.Speakerphone function, and electronic control unlock function.It has the function of monitoring the outdoor.Ultra-thin acrylic panel design, beautiful and stylish.25 chords music to choose from, and you won't always hear the monotonous doorbell.Super waterproof, with night vision infrared function.Wall-mounted design, easy to install.Specification:Material: ABS & Acrylic panel & zinc alloyWeight: 1159g/40.9oz Color: Black Plug & Voltage: US Plug 100V-240VDisplay: TFT - LCD 7inchResolution: 800*480Receiver size: 240*150*23mmPower adapter: 5V/1AVideo output formats: PAL and NTBSVideo output: 1Vp-p CVBSOperating current: <400MAWorking frequency: 2.4g ISM digital common frequencyRinger: 25 chords musicIndoor Unit (receiver): 240*150*23mm/7.1*4.7*0.7inchCamera: 700 line CMOS color digital HD cameraPower consumption: standby 0W, working 2WPower supply: indoor extension power supplyBest distance for night vision: 2--3 metersCamera Angle: 90 degreesNight vision: 5 LED lightsOperating temperature range: -20 to +60Installation: wall hangingOutdoor Unit (camera): 125*50*40mm/6.1*3.9*2inchPackage List:1 x Doorbell Indoor Unit 1 x Doorbell Outdoor Unit1 x Power Supply1 x White Wire2 x Instructions1 x 2-core Wire1 x 4-core Wire1 x 5-core Wire6 x Screw1 x Hanging Plate1 x Wrench