Specification: Condition: 100% Brand New Item Type: Doorbell Material: Aluminum Alloy + ABS Plastic Barrier-Free Communication Distance: Approx.200M/656.17ft Indoor Unit: Screen: 7-inch TFT LCD display Display Size: Approx.191 x 120 x 18mm/7.5x4.7x0.7in LCD Resolution: 800 x 480 LCD Viewing Angle: 45 degrees LCD Screen Brightness (cd / m2): 200 ± 10% Working Power: 8W Battery: Built-in 3300mAh lithium battery Extended Memory: Maximum support 32G memory card (standard without memory card) Video Format: ASF (can be played back directly, the computer needs to install software to play) Single Screen Status: 640 x 480 @ 25FPS Photo Format: 640 x 480 JPG Power Input: AC: 100-240 50 / 60Hz Power Output: DC: 5V / 2A Video Output: 1Vp-p CVBS Working Current: ≤ 750mA Standby Current: 200mA Working Frequency: 2.4GISM digital common frequency band Working Temperature: -20 ℃ - 50 ℃ Outdoor Unit: Lens: For CMOS 3.6mm 92 degrees, 0.38MP Power Supply: DC: 13.5V / 1.5A, AC: 100-240V / 50-60HZ Battery: Built-in 2600mAh lithium battery Operating Current: 250mA Standby Current: 13uA Support Anti-Demolition Alarm and Delay Lock Night Vision Distance: Approx.3-5m/9.84-16.40ft Viewing Angle: 92 degrees Night Vision Distance: Approx.5-10m/16.40-32.81ft Main Function: Infrared night vision monitoring Working Frequency: 2.4G ISM digital common frequency band Package List: 1 x Outdoor Unit 1 x Indoor Unit 2 x 720P Camera 1 x Power Supply of Indoor Unit(5V / 2A) 1 x Power Supply of Outdoor Unit(13.5V / 1.5A) 2 x Power Supply of Camera(12V / 1A) 2 x Camera Antenna 1 x Hanging Board of Indoor Unit 3 x Installation Kit 1 x Manual 1 x USB Cable