Interference frequency:
CDMA ：850mhz-894mhz
GSM： 925mhz-960mhz
DCS： 1805mhz-1880mhz
PHS： 1900mhz-1990mhz
3G： 2110mhz-2170
China 3G: 2015 mhz-2025 mhz.
WiFi ：2400mhz-2500mhz
Effective shielding radius 5 m-20 M
Weight: Full set of 0.8KG
Charging operating voltage 110V-240V/50HZ-60HZ
Output 12V/2A
This product is portable, built-in lithium-ion power, can work for about 2 hours at a time, equipped with car charging and direct charging, and interferes with all mobile phone signals and WIFI signals. It is widely used in small conference rooms, offices, confidentiality places, etc.