Description
Product Description
Block Area
50 – 80 Meter
GSM, CDMA, 3G, 4G, 4G LTE , 5G -1, 5G-2, GPS, WIFI,
BLUETOOTH
B10H CDMA GSM UMTS LTE GPS WiFi Phone Signal Shield Device * Range: 30-50 meter * Function: prevent a place from wifi phone GPS * Application: prison, school, examination, meeting room, business conference room, military base, oil station, etc.
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