Video Demo - Cell Phones Handheld Jammers 4 Bands

4 Bands Cell Phones Handheld Jammers 2G 3G GPS

This mobile phone jammr is suitable for all kinds of examination room, gas stations, churches, courts, libraries, conference centers, theaters, hospitals, military and other places to prohibit the use of mobile phones

Built-in high-capacity lithium battery 2000mAh, can be used continuously for 1-3 hours. Can be used for 24 hours, not hot. Use this 4 bands jammer your can effective jam Signal from cell phone, 2G 3G GPS WiFi RF signal at a radius of 20 meters. Can help you protect your privacy