There are some precautions when using this equipment. Here are some notes about cell phone jammers. Due to the performance difference of individual Buy Cell Phone Disruptor Usa, it may take some time for the PHS mobile phone to stop using. The nearest base station in a certain area may have difficulty cutting off the cell phone signal. Each mobile phone has different manufacturers and models, and its performance will vary. The effect may be different. It may not immediately appear as "out of service area". There are some precautions for use. Don't disturb other people's mobile phones. Do not disassemble or modify the product without authorization to export illegally. This is a crime in violation of the Radio Law. Depending on the specification environment, the effective range may be narrowed. In addition, depending on the mobile phone manufacturer, there are things that are easy to respond and things that are difficult to respond. There is a fact that some countries have banned the use of portable cell phone signal jammers. It applies to wherever these products are located. Bad things may happen. cell phone jammer