Bluetooth was introduced in 1994 and was named after King Harald Bluetooth, king of Denmark and Norway. Bluetooth was named after Harold "united Scandinavia and Bluetooth wanted to unite mobile PCs and cellphones to communicate. But Harold reportedly got his 'Bluetooth' nickname from a dark, dead tooth not from eating an extreme amount of blueberries." With this technology it can communicate using low power radio waves. This allows the phone to connect to a speaker, wirelessly to play music and answer phone calls. Because it is wireless, this technology got put into cars, stores, and other facilities to play music and other uses. Bluetooth is affordable for all people and is very easy to access and use. To connect to Bluetooth, one has to go to the settings on their phone, click the Bluetooth icon, and click the device you want your phone to connect too. Some devices ask for a password in order to connect with the phone but that is very rare. Bluetooth also avoids interferences with other wireless devices. Meaning, that if a device is connected to it another device can not can not connect to the same bluetooth product while it is being used. The problems with Bluetooth is that there are distance limitations to it. Depending on the Bluetooth device, Bluetooth devices can stay connected within ten meters to one hundred meters. Bluetooth also has very poor security. When paired with a Bluetooth device, smartphones pair for data transfer however, this makes it easier for hackers to pounce at the opportunity. It is easy for someone to lose data if your Bluetooth gets paired with the wrong device. Bluetooth has horrible battery power. If connected, one's phone battery and Bluetooth device battery will drain at a drastic speed, leaving one to constantly charge both devices. With a Bluetooth device connected to another, it can have an effect on the data transfer. Bluetooth is much slower at transferring data than WiFi. Because of this, one will have to constantly reconnect the devices together. The transmission can also be affected by too many applications being opened and running at the same time.
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