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Wireless connectivity is an innovative technology that allows devices to communicate without cables with a computer or other devices. They can be powered by a classic battery (AA or AAA type) with long life, or by an integrated battery for practicality, but with less life. Battery life can also be further reduced by the presence of a backlight. The standard range of such a connection is 10 metres, but some devices can communicate over longer distances. This makes them ideal for laptops and for carrying around.

Bluetooth is a wireless technology designed to transfer data between devices over a relatively short distance. It is particularly popular for connecting headphones, mice, keyboards and other peripherals to computers, mobile phones or tablets.

USB (Universal Serial Bus) is a standard interface for connecting various peripheral devices to computers. It is known for its versatility, speed and ability to transfer both data and electricity.

A keypad, or numeric pad, is a standalone device that can be connected to a computer or laptop, usually via USB or Bluetooth. This device is very useful for those who need to enter numerical data frequently but prefer a more compact keyboard without an integrated number pad. With the ability to easily connect or disconnect, users can use the keypad only when they need it, allowing them to keep their workspace organized and flexible.