VKJ Wireless Video Intercom System Doorbell with Camera and Monitor The indoor monitor screen lights up automatically when someone presses the doorbell, you can press the answer key to talk with each other. You can see what's going on outside your house on the indoor monitor by your own anytime, your home security is under your control. The indoor unit is a resolution of 1280X800 / 8"Large touch screen. All functions are integrated on it for you to control, easily use and smooth like iPad. The doorbell camera will automatically record videos (when visitors press the doorbell or stay at your door) and save in TF card (included) for users playback on the indoor monitor anytime. Local storage, no monthly fees and subscription. Real-time Notifications When the PIR sensor detects motion, it will immediately send a notification to the indoor monitor / your phone, let you know who's coming to your home. You can precisely adjust the detection sensitivity to reduce unnecessary notifications. No matter where you are, you can check what's going on in your home through the Tuya app. Connect to the power supply for stable use Plug in the power to the monitor for stable use. The indoor monitor is built in a 2000 mah battery just in case of power failure. Wire-free video intercom system No wire is needed to connect the indoor and outdoor device. The indoor monitor can be put everywhere in your house.No need to run to the door Share device with family The doorbell camera can be shared with family members at the same time. Wireless Unlocking module You can open the door through the Tuya APP or indoor monitor. We provide unlock module, wiring method can refer to the user's manual. The outdoor doorbell camera can work with lithium battery or connects to existing doorbell wires for constant power Doorbell camera features 5000 Mah rechargeable battery. With the smart low power consumption management function, working time reaches up to 30-45 days after full charged. You can easily remove and recharge the battery whenever it runs low. outdoor unit is a wireless battery-powered HD camera that helps you monitor your home day or night with infrared night vision. 160-degree wide angle lens give you wider field of view. With rain cover to prevent water and protect the outdoor camera from damage. ATTENTION: the connection must be made using an adapter of the appropriate specification,otherwise the doorbell camera will be damaged. 2.4G/5GHz Dual Bands ,Battery Operated Outdoor camera and indoor monitor no need to WIFI connection. With wireless signal, the signal can meet 1st to 3rd floors. Its valid signal distance is up to 100m in open space (ATTENTION: no walls or no metal between doorbell and monitor) . The actual signal performance depends on the usage environment. When ultra long-distance monitoring or goes out, if you want remotely watch the image of the camera through Tuya app, the monitor needs to be connected to WIFI. The indoor monitor is built in a 2000 Mah battery just in case of power failure. In order to keep the wireless signal strength at its best, please install the device on the recommended location If you have any questions during use, please get in touch with our after-sales service in time. FAQ Q: How is the doorbell camera powered? A: The doorbell camera has a 5000mAh rechargeable battery that you can easily remove and charge when it's low（you can view the remaining battery life of the doorbell camera on the app）. It is also possible to connect it to an existing doorbell wire for continuous power. Q: How to install the doorbell camera? A: Easily install the wireless doorbell camera with either 3M strong adhesive or screws; screws and tools are provided. Q:Can it be used without WiFi? A: Yes, The doorbell camera and monitor do not require WiFi connection; they operate on a wireless signal with an effective range of up to 100m in open space. However, if you wish to monitor the doorbell camera from a greater distance or when using the TuYa app, you'll need to connect the monitor to WiFi. Q: Are there any subscriptions fees? A: No, the events are stored on the TF card (included) , and you can view them on the monitor, they also sync up to the TuYa app. It's completely free, with no subscription or monthly fees. Q: Does the doorbell support operation via the app? A: Yes, download the TuYa app on Google Play/App Store, only add the device to the app (Refer to video operation), and enjoy the convenience brought by the mobile end.