Feature: 1. High Definition: The video doorbell has 720p high definition video with 120 degree wide angle lens, you can watch your visitors more clearly and more range. 2. Quick Operating: The doorbell camera supports that by click your mobile phone for 1 to 3 seconds from long distance, the wireless ring doorbell can be woken up quickly. 3. WiFi Compatible: The ring doorbell camera support 2.4G WiFi connection, it can automatically switch between the day mode and night mode, no matter day or night, the image is clearly visible, ensuring the safety of yourself and your family. 4. Two Way Call: Equipped with premium two way call noise reduction, the ring doorbell supports PIR motion detection, when someone hovering at the door, immediately remind your mobile phone to push notification for you. 5. IP65 Water Resistance: Made of IP65 water resistance material, the wireless video doorbell is more safe and has long service life for you, suitable for home, hotel, rented house and so on. Specification: Item Type: Video Doorbell Material: ABS Weight: Approx. 177g/6.24oz Color: As Shown Size: Approx. 48x134mm/1.89x5.28in Battery: 2x Li Battery (Not Included) Storage: 128Mb Flash Sensor: 1080p GC1054 CMOS Sensor Lens: 120 Degree Wide Angle Lens Sensor Performance: Support Automatic White Balance, Automatic Gain Control, Automatic Back Light Compensation SNR: ≥39dB Minimum Illumination: 0.8Lx/F1.4 (Color Mode), 0.3Lx/F1.4 (Black and White Mode) Night Vision: Dual Filter Automatic Switch, 6pcs 850nm dia 28mil High Power Infrared Lamps Night Vision Distance: Best at a Distance of 5 Meters and Up to 20 Meters Movement Detection: PIR Movement Detection, Sensitivity Can Be Adjusted, Detection Range (Trigger Immediately within the Effective Range) Best of 2m, Up to 4m (Subject to Ambient Temperature and Light) Human Recognition: Automatically Record when Human is Detected (if Humanoid is Not Detected, It Will Automatically Go to Sleep) Video Format: MP4 (H.264) Video Size/Frame Rate: 720p/20fps. Package List: 1 x No Trace Stick1 x English Manual 1 x Main Body of Video Doorbell1 x Dingtone2 x Expansion Nail2 x Screw