This is a camera that can be viewed remotely. Its storage methods include memory card storage and cloud storage, and it has infrared night vision function. It is powered by a USB cable and does not have a battery. You can remotely view real-time monitoring images. You need to remove the storage card and use a card reader to view previous video/video content on your phone or computer. You can also use cloud storage. After receiving the product, please follow the following operation process for installation. If you have any questions, please contact customer service and do not leave any negative reviews. Thank you very much. If you are satisfied with the product, please give a 5-star review. Thank you very much for your support, And goodwill.