Because they use cell towers to transmit calls.
Cell phones are small radios, that both transmit and receive. When they transmit they emit radio waves, which is a kind of radiation.
yes
Radio waves are used in cell phones to transmit and receive signals by converting sound and data into electromagnetic waves that travel through the air to nearby cell towers. These towers then relay the signals to other cell phones or the internet, allowing for communication between devices.
japan
No, they do not have the same charger as all other cell phones but a Blackberry charger will be similar to some cell phones.
As of December 2008, there are 271,000,000 cell phones in the U.S., about 88 percent of the population.In the world, there are 4,100,000,000 cell phones in use.For a full list of countries and number of cell phones, see related links.
Telstra phones are cell phones that have mobile phone plans tailored to overseas use. Specifically, Telstra phones are most often found in countries such as China, India, Hon Kong and other parts of asia.
Orthogonal Frequency Division Multiple Access. It has something to do with the way cell phones transmit signals.
A telegraph relies on a wire to transmit a message to an individual on the receiving end. A cell phone is a wireless device that uses radio waves to transmit a signal.
not all moms have cell phones but most moms have cell phones to keep in touch with other
There are no inherent benefits in using a cell phone from the US, as identical models are available in other countries, however, it might be cheaper. Any benefits come from the carrier.