Our bug detectors act as sweepers, you can turn them on and walk through a room. If any frequencies are detected the bug detector will notify you. When searching your home or office for bugs be sure to search everywhere. Bugs come in many shapes and sizes some being smaller than a penny. High quality hand held bug detector great for detecting wireless audio/video products. Built-in signal strength meter and sensitivity control. Full detection range from 1 MHz to 3 GHz. This device can be used to locate a bug. Includes: Antenna and charger Specifications: • Frequency Range: 1MHz to 3 GHz • Battery: 5 x AA 600m/AH NiCd • Battery Life: 6HRs in use/500 stand by Ant. • Impedance: 50 Ohms • Silent Alert Mode: No • Beeper: Yes Low • Battery Indicator: No • Barograph: Ultra Sensitive 5 Sections • Dimensions: (L)(W)(H)=3.9" x 2.75" x 1.2"