No instruction manual included. Please scan the QR code. Wi-Fi and power supply required. I set it up once, but mistakenly thought it was for outdoor use. The image quality was vivid. Please purchase any necessary items. I was able to manage with what I had at home. It has been used for testing, and the box is slightly torn, so please understand. I am selling it at a low price. Suitable for office use, in-store monitoring, pet monitoring, etc.