Mobile Phones Features

Bluetooth

Allows you to transfer files between two devises if they both have bluetooth. also used to connect your ipod or phone to the car radio/stereo. Its quite slow and a bit out of a date now.

Wifi

Wifi allows you to connect to the internet from you mobile phone when your near a router or in a internet cafe. Leaving this on all the time will drain the battery life really quickly.

Bands

Bands are what countries use to keep there phones separate. you get single band which will only work in your country and quad band will work anywhere in the world.

External Storage

External storage is used to backup files from your phone or so you can transfer data between devises by using an SD card.