1, of course, it won't charge itself, but it needs traffic to check and monitor, and you have to pay for this traffic. Of course, now that the mobile phone package has traffic, it can be regarded as a disguised form without charge.

2. No charge. A camera connected to WiFi only uses the WiFi function to share the information in the camera with other devices, free of charge. Wifi camera is a simple monitoring system and an integrated camera transmission system for professional unannounced visits. The product has long service life and simple installation, and is equipped with 12V DC transformer.

3. Yes, it's safe. Universal webcam monitoring software app is a camera monitoring software with high-definition quality, which provides a variety of functions and professional monitoring functions. Monitoring camera is a semiconductor imaging device, which has the advantages of high sensitivity, strong light resistance, small distortion, small volume, long life and vibration resistance.

4. Wireless surveillance cameras use wireless networks within the range of WIFI signals. As long as you pay for the wireless network, the use of the camera is free. Mobile phones need to use traffic where there is no wireless network.

5. There is no charge for watching the real-time video on the monitoring page normally or watching the video stored in the memory card circularly. If you need to synchronize the cloud disk to prevent the monitor from being taken away, you will be charged, and you will automatically call your mobile phone if there is any abnormality.

6. Safety. The code scanning function of camera phone is generally free and safe. In fact, code scanning technology has been widely used in payment, shopping, transportation, security and other industries.