Purpose of forcibly forbidding using of the cell phone can be achieved

it can make sending and receiving functions of mobile phones in the specified area invalid so that cell phones can not make or answer calls and purpose of forcibly forbidding using of the cell phone can be achieved.

It is applicable to the following locations: important meeting rooms of such government departments as the party committee (ministry committee, provincial committee, autonomous region committee, municipal committee, prefectural committee and county committee), war unit in army, staff office, confidential room, petrol station, gas station, oil field, oil depot, oil refinery, petrochemical base, hospital (including operation room, CT room, ICU, outpatient clinic), judicial tribunal, prison, TV and telephone meeting room of public security department, confidential fax room, examination room, classroom, bid venue, memorial hall, museum, TV station, studio, recording room, theater/concert hall, financial institution, high-level hotel banquet hall, civil flight control department and public places where noise is forbidden.