They are convenient to use i.e. usi

They are
convenient to use i.e. using it anytime you need to make a call, SMS can
be used when one can’t afford to call, enables one to send and receive
e-mail, They are portable e.g. it can be carried from one place to
another.
But the disadvantages are that children’s skulls are
vulnerable to radio waves from phones which can damage their brain
tissues as the nervous system is very sensitive during development. Cell
phone antennas which are close to earpiece are harmful to humans due to
large volumes of electro-magnetic waves that get concentrated around it
during the receipt and placing of calls. Vibrating phones affect men’s
reproductive system, radiation from phones also increase blood-pressure,
risk of brain tumors mainly acoustic neuromas. Lab research also shows
that long exposure to mobile phone on stand-by leads to serious
degradation of white blood cells. They are susceptible to loss and
theft. Restricting access to corporate data and applications.
Non-repairable internal corrosion of parts if wet. Vulnerable to extreme
heat or cold which may cause momentary loss of screen display. Mobiles
are very noisy sometimes especially when we are praying in the mosque,
learning at university, or reading in libraries.