... mode: 1. Laser detection, 2. Vibration (Mute) detection, 3. Beep detection, 4 LED display detection, 5. Headset5) Low- ... laser switch, instrument back 6 LED light starts blinking.3) Vertical and horizontal movement of the apparatus, scanning ... ) A signal, only the flashing lights and vibration.3) Other operations with sound detection.C: CompassThe instrument ... Professional Full-range RF Bug Detector O-858