... the wireless wiretap in car, office, conference, room, dressing room, Mini Signal Bug Detector RF TG-007C:Frequency range: 800-1500MHz ... the cellphone signal, like GSM800, GSM900,GSM1800,GSM1900,PHS1900, CDMA850, 3G and the WIFI,bluetooth,spy camera, spy camera audio.The ... : 70Db Indicate mode: 9 levels LED luminescence indication/voicing instruction Mini Signal Bug Detectors TG-007C