As you know in every country their would be many intelligence organizations which work hiddenly. The devices used by them are very special just like, Pin ole cameras, Voice recorders, Small microphones with wide range, Automatic phone recorder. These things are very useful for detectives. Sahgal Electronics also with many secret agencies and day by day invents new secret items. Sahgal Electronics also work with Army & Police. You can also take advantage from Sahgal Electronics secret services.