Specification: Indoor Unit Technical Parameters: Machine Size: 228 x 128 x 21mm/9.0 x 5.0 x 0.8in Display Size: 7 Inches (16:9 Display) Power Consumption of the Whole Machine: ≤6W (400mA) Resolution: 800 (RGB) x 480PX Standby Power Consumption: <1.1W Viewing Angle: Up 50°, Down 70°, Left and Right 70° Power Adapter: 5V1000mS Effective Area: Approx. 154.08 x 86.58mm/6.1 x 3.4in Talk Delay: 120s±10% Brightness: 200cd Monitoring Delay: 60s±10% Ringtones: 8 Polyphonic Ringtones Effective Distance: Approx. 200m/656.2ft (Barrier Free) Received Sensitivity: 58dB Working Temperature: -10℃-+55℃ Format: PAL, NTSC (Optional) Relative Humidity: 10%-85% (RH) Input Voltage: AC100V-240V-50Hz 60Hz Outdoor Unit Technical Parameters: Machine Size: 138 x 78 x 37mm/5.4 x 3.1 x 1.5in Infrared Irradiation Distance: About 3 Meters Power: ≤2W Gain Control: Automatic Power Supply: 5V1000mA Resolution: HD Talk Delay: 120s±10% Viewing Angle: 92° Monitoring Delay: 60s±10% Ringtones: 8 Polyphonic Ringtones Effective Distance: 200m/656.2ft (5 x 0.75mm²) Received Sensitivity: 58dB Working Temperature: -10℃-+55℃ Relative Humidity: 10%-85% (RH) Gross Weight: 989g/34.9oz Package List: 1 x Indoor Unit 1 x Outdoor Unit 1 x 3 core Unlocking Cable 8 x Screw 8 x Rubber Plug 1 x Indoor Unit Bracket 1 x Instruction Manual 2 x USB Adapter Cable 1 x Antenna 2 x Power Plug