Feature: * Durable housing, great portability * Suitable for Police, Military personnel, Security operator to conduct on site instant control. * This device can block all cell phone communication in coverage area within two seconds after powered on. * Forward blocking can reach > 20 meters (-85 dBm down link). * Elegant appearance，No ugly antenna，one fully charged battery can last >4 hours, back up battery is available in option -This device is suitable for government, military,police, and security operator conduction instant security controls. -This device can also been used for non-portable applications using AC plug in. -This device do not interfere up-link signal. -This device can instantly blocking all down-link signal. Instantly stop voice conversations. -100 %designed and manufactured in Taiwan.
Specification: Support frequency bands (for US version) 700: 699-716MHz 750: 777-787MHz 850: 814-849MHz 1900: 1850-1915MHz 2100: 1710-1755MHz 2500: 2496-2690MHz *Other territory version can be modified with as well -Input power: lithium battery @12 V, 3A -Coverage area: forward direction up to 20 meters @ ＜-80 dBm base station signal -Antenna: internal, semi-directional (>3dB froward gain) -Dimension: 330(W) x 270(H) x 120(T) mm -Weight (with battery): <2.4Kg -Operation temperature: 0℃ - 35℃ (cooling fan optional) 32°F - 95°F -Back up battery: optional -Warranty: 12 months -Made in Taiwan