Have you heard of a wifi jammer? You may not be familiar with this product, but you definitely use WiFi a lot. Jammers are products that block radio signals from electronic products such as cell phones, GPS WiFi, and Bluetooth. In particular, the desktop WiFi signal jammer suppresses communications from cell phones and the like, and sends interference waves in the same frequency band as the frequency bands used by the cell phone and the PHS, thereby reducing the state of the radio waves sent from the base station by the cell phone that is using your cell phone in can prevent the proximity.
The electromagnetic signal emitted by the radio scrambler only blocks the role of mobile communication and is therefore completely within the working frequency band of the national mobile phone. And the signal is always relatively static and does not affect electronic devices. Suitable for CDMA (China Unicom), GSM (China Mobile, China Unicom), SCDMA (Netcom Taitung), DCS (1800 MHz), PCS (1900 MHz), PHS (Telecom PHS), 3G, 4G, Wifi and other cell phone Signal shielding Bluetooth / 2.4G communication, wireless network signal GPS interference The electromagnetic field strength is well below national standards and has no effect on the human body.