high power handheld cell phone jammer

First of all, this 3G GPS signal jammer is designed with four antennas, which can simultaneously cut off the GPS L1, CDMA, GSM, DCS, PCS and 3G signals. The interference distance can reach up to 40 meters, depending on the signal of power. The jamming GPS signal has a high output power of 10W. As a result, the high-power 3G GPS jammer is designed with adjustable buttons that allow people to determine the distance and frequency range. The remote control also allows you to start/turn off the GPS signal jammer.