1. This model does not support 4G function, usually need to use wifi network to connect the device. The store also offers a 4G version. 2. This product requires 6 18650 batteries. Shipped without battery WI-FI version supports 2.4G Wifi wireless connection, does not support 5G wifi Support 4X digital zoom, so you can easily and clearly view remotely on your mobile phone Solar charging, only need to place the camera in a sunny place to work, IP66 waterproof, can deal with harsh rain and snow weather conditions When moving objects are detected at night, the LED lights up and alarms. At night, you can shoot color videos and send alarm notifications to your mobile phone It supports mobile applications, iOS and Android systems. View anytime, anywhere. Support two-way audio. Our camera is guaranteed for one year. If you have any questions, please feel free to contact us.