Wireless set , comprising the following elements: - potentially harmful means , which have to be deactivated in a prohibition area when in said prohibition area their use is prohibited, - beacon receiver for wirelessly receiving at least one beacon carrying at least a data packet , location means for generating location data defining a wireless set location area where said wireless set is located, - memory means for storing program codes and data, input/output means for receiving and issuing data and commands, and - processing means , in signal communication with at least one of the above said elements of said wireless set through a control bus 208, configured for receiving signals and data from said at least one of the above elements, executing program codes also on the basis of said received signals and data, and transmitting, to said at least one of the above elements, signals and data, - said wireless set is adapted to receive and process said data packet comprising at least a service identity , identifying the beacon as a beacon demarcating a prohibition area , and a state signal , specifying prohibition or permission to use said potentially harmful means , characterized in that : - said memory means also store a beacon location database defining at least one beacon location area as an area comprising at least a fraction of said prohibition area , - said processing means are also configured for: • ensuring that said beacon receiver is in an active state in said at least one beacon location area , • searching for a beacon comprising said data packet with said service identity , by means of said beacon receiver , and wherein said data packet , received through said beacon receiver , also carries a value for a timeout Twt and said processing means are also configured for holding said beacon receiver in an active state for a time corresponding to said value of said timeout Twt , starting from the reception instant of said Twt value. - potentially harmful means , which have to be deactivated in a prohibition area when in said prohibition area their use is prohibited, - beacon receiver for wirelessly receiving at least one beacon carrying at least a data packet , location means for generating location data defining a wireless set location area where said wireless set is located, - memory means for storing program codes and data, input/output means for receiving and issuing data and commands, and - processing means , in signal communication with at least one of the above said elements of said wireless set through a control bus 208, configured for receiving signals and data from said at least one of the above elements, executing program codes also on the basis of said received signals and data, and transmitting, to said at least one of the above elements, signals and data, - said wireless set is adapted to receive and process said data packet comprising at least a service identity , identifying the beacon as a beacon demarcating a prohibition area , and a state signal , specifying prohibition or permission to use said potentially harmful means , - said memory means also store a beacon location database defining at least one beacon location area as an area comprising at least a fraction of said prohibition area , - said processing means are also configured for: • ensuring that said beacon receiver is in an active state in said at least one beacon location area , • searching for a beacon comprising said data packet with said service identity , by means of said beacon receiver , • ensuring that said beacon receiver is in an active state in said at least one beacon location area , • searching for a beacon comprising said data packet with said service identity , by means of said beacon receiver , <EOS>