Feature:1. Real Time Monitoring: When someone rings the doorbell, you can check the status in front of the door in real time through phone app when you are not at home. You can watch it anytime and anywhere, and you can also record videos and take photos, which is safe and reliable.2. Infrared Night Vison: Equipped with infrared lights, the doorbell camera can switch between daytime and nighttime modes according to the ambient light strength. Even in the dark environment you can see clearly and shoot clearly.3. Voice Changing 2 Way Audio: The wifi doorbell camera supports voice change intercom, protecting your identity and prevent harassment. You can easily deal with all kinds of situations when you are alone at home.4. Long Standby: 1000mAh battery, which can be used for 3 and 4 months after being charged once. It does not need to be disassembled, replaced or charged frequently. There is also a low battery notification for your home's safety.5. Wireless Installation: The wireless doorbell camera is easy to install, no wire required, no punching, and can be pasted as soon as it is torn without damaging the wall, which is convenient and practical.Specification:Item Type: Wireless Doorbell CameraMaterial: ABSGross Weight: 146g / 5.2ozConnection Mode: Bluetooth and WiFiView Angle: 60 degreePickup Distance: 3 m / 9.8ftStorage: CloudDoor Bell Camera Battery: Built in 1000mAh lithium battery (shipped with built in battery).Package List:1 x Door Bell Camera1 x Indoor Ding Dong Machine1 x Double Sided Adhesive1 x Back Panel1 x Instructions1 x USB Cable