Dual Receiver Wireless Home Security Video Door Phone featuring 2.4GHz transmitter and two video receivers is the ideal secure way to protect your home, office or work from potential intruders.The most innovative video phoneWireless connectionEasy to installTwo indoor screens for extra flexibility (3.5 inch and 7 inch)Manufacturer SpecificationsGeneralCamera Sensor: CMOS 1/4 300k PixelsCamera Light Source: 6 LED LightsReceiver On-Screen Indicators: Monitor State, Signal Bar, Battery BarTransmitter On-Screen Indicators: LED Indicator, 6 LED LightsMonitors Receiving Range: 10 MetersRemote Control Range: Up to 15 MetersWireless Transmitting Range: Up to 50 MetersTransmitting Frequency: 2.4GHzReceiving Frequency: 2.4GHzTransmitter Power Source: AC Adapter (100-240V) 50/60HzReceiver Power Source: BatteryReceiver Battery Type: 3.7V Rechargeable Li-ionReceiver Battery Size: 1250mAHCharging Time: 3 HoursBattery Standby: 35 DaysDisplaySmall Receiver Display Size: 3.5 InchSmall Receiver Display Resolution: 320x240Small Receiver Non Touchscreen DisplayLarge Screen Display Size: 7 InchLarge Screen Display Resolution: 800x480Large Receiver Non Touchscreen DisplayPortsUSB PortControlsReceiver Volume: Increase/DecreaseReceiver Brightness: Increase/DecreaseReceiver AntennaReceiver Power: ON/OFFUnlock DoorView MonitorTalk ButtonCall ButtonLock/UnLockPicture: Take a Picture, View Last Picture, View Next PictureTransmitter MicReceiver MicTrasmitter SpeakerTransmitter Power: ON/OFFDimensionsMain Product Dimensions: 120x85x20mm (L x W x D)Small Receiver Dimensions: 140x86x20mm (L x W x D)Large Receiver Dimensions: 240x130x20mm (L x W x D)Package ContentsTransmitter with CMOS Camera SensorWireless Receiver with 3.5 Inch TFT/LCD MonitorWireless Receiver with 7.0 Inch TFT/LCD MonitorCamera AdapterMonitor AdapterScrewsBatteryProtective Case for Transmitter3M StickerMounting HardwareUser Manual