7in TFT LCD Doorbell 2.4G Wireless Swipes Card Night Vision Visual Doorphone with 2 Surveillance Camera Condition: Item Type: Video Doorbell Material: Aluminum Alloy + ABS Color: As picture shown Indoor Unit: Screen: 7-inch TFT LCD Display Monitor Size: Approx. 191 x 120 x 18mm/7.5 x 4.7 x 0.7in LCD Resolution: 800 x 480 LCD Viewing Angle: 45 Degrees LCD Screen Brightness (cd/m2): 200 ± 10% Working Power: 8W Battery: Built-in 3300mah Lipo Battery Extended Memory: Maximum Support 32G Memory Card (Not Included) 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 Output: DC: 5V/2A Video Output: 1Vp-p CVBS Working Current: ≤ 750mA, Standby Current 200mA Working Frequency: 2.4GISM Digital Common Frequency Bands Working Temperature: -20 ℃ - 50 ℃ Outdoor Unit: Lens: CMOS 3.6mm 92 Degrees, 0.38MP Battery: Built-in 2600mah Lipo Battery Operating Current: 250mA, Standby Current 13uA Function: Anti-demolition Alarm, Delayed Lock, Swipes Card Function Camera: Lens: 3.6mm Resolution: 1MP Viewing Angle: 92 Degrees Night Vision Distance: Approx. 5-10 Meters/16.4-32.8ft Main Function: Infrared Night Vision Monitoring Working Frequency: 2.4g ISM Digital Common Frequency Bands Working Current: Daytime: 250mA; Nighttime: 450mA Maximum