Our pocket size Personal Radio Frequency Detector locates stuck transmitters or bugging devices in a room or automobile. This personal RF detector excels at silent detecting of RF signals for RF security and counter-surveilance applications. Specifications: ¥ Internal NiCD battery pack ¥ Vibration motor and earphone for private detection ¥ 5 section bar graph to show relative RF signal strength ¥ Low power consumption ¥ 1 MHz - 6 GHz Frequency range ¥ Sensitivity adjustment ¥ 9V DC 300mA power Includes: ¥ AC wall charger ¥ 2.4 GHz antenna ¥ Earphone ¥ Users manual SIZE: 3 3/4" x 2 3/4" x 1 1/4"