40 days. According to relevant public information inquiries, the pinhole camera can be on standby for 40 days, and has features such as remote power on and off, and remote synchronization of recording and video recording with mobile phones. A camera, also known as a computer camera, computer eye, electronic eye, etc., is a video input device that is widely used in video conferencing, telemedicine, and real-time monitoring. Ordinary people use the camera to communicate with each other on the Internet with images and sounds. Talk and communicate.