... :10M 3.voice alarm or Vibration alarm 4.CDMA,GSM,DCS,PHS/3G cell phone detector 1.introductionMobile phone signal detector ... can exactly detect the CDMA,GSM,DCS and PHS(3G) mobile phone signal in 1-10 meters ... the RX frequency(GSM) 890MHz-915MHzCan detect the RX frequency(DCS) 1710MHz-1785MHzCan detect the RX frequency(PHS/3G) 1920MHz-1980MHz ...