There are mainly the following types of mobile phone signal jammers:
Active Cell Phone Jammer: This type of jammer interferes with the reception and transmission of cell phone signals by emitting signals at specific frequencies. They are typically battery powered and have adjustable power and coverage. Active jammers block communications from nearby mobile phone devices, making them unable to receive or send signals.
Passive cell phone signal jammer: Passive signal jammers do not emit interference signals, but use special materials or structures to absorb or reflect mobile phone signals, thereby weakening the signal strength. This type of jammer is usually a physical shielding device, such as a metal mesh, metal film, or special shielding material, that can be placed around buildings, vehicles, or equipment to reduce cell phone signal penetration.
Wearable cell phone jammers: This type of jammer comes in the form of a wearable device, such as a bracelet, watch, or necklace. They come with built-in blocking technology that blocks cell phone signals to a small area around the device to protect personal privacy or prevent wireless signal interference.
It is important to note that the use of cell phone signal blockers may be restricted by local laws. Before purchasing and using a cell phone signal jammer, be sure to understand local regulations and make sure it is used within the legal scope.