... Phone Jamming Hidden Painting Mobile Phone Jamming Specifications Tx Frequency:(A)TX frequency ... -2200MHzAvailable system;Include analog (AMPS,TACS,NMT) and digital (GPRS,GSM, DCS,CDMA,PDC,TDMA,PHS,PCS,IDEN,W-CDMA,UMTS ... ,Restaurants,Places of Worship,Country Clubs,Hospitals,Meeting room,etc. Hidden Painting Mobile Phone Jamming