Mobile phone has added a new dimension in our communication system. It has made the world closer to us. a, it has made worldwide communication easier. We use it for our day-to-day communication. b, it has been part and parcel in our life as we cannot go for a single day without using it. We use it for rapid communication. c, mobile phone is not free from defects. It has some negative sides as well. d, excessive use of mobile phone may damage our hearing power. e, it is a means of money wastage. f, it is seen that many underworld crimes are being done with the use of mobile network. g, the radiation from mobile phone may cause cancer to the users. h, we are aware of these harmful effects. i, we are not aware of using the mobile phone. j, we must have to be conscious of the negative impacts of mobile phone.