... 5. Headset 5) Low-voltage prompts, built-in rechargeable battery. 6) Laser detection: Windows host can be ... 10) Detect more covert videotaping 5.8GHz wireless camera, wireless eavesdropping devices, wireless monitor the signal 11) Check hotels, ... toilets, entertainment venues, changing rooms, anti-wireless pinhole camera 12) Business negotiations, school examiner places, factories ...