What the product should be used for, and how it should be used (e.g. ambient temperature).

The technology that enables connectivity of the device, e.g. wired or wireless.

The ports (sockets) where the device connects with other devices.

The characteristics of the key switch, mechanical vs rubber dome. A mechanical key switch is usually more expensive, gives a stronger feedback and can be more precise.

The type of keys on a keyboard, and their position on the keyboard. This can differ from country to country.

The letters which are marked on the keys for convenience of the keyboard usage with specific language.

Keyboard size, e.g. standard, mini.

Small, palm-sized, seventeen key section of a computer keyboard, usually on the very far right. The numeric keypad features digits 0 to 9, addition (+), subtraction (-), multiplication (*) and division (/) symbols, a decimal point (.) and Num Lock and Enter keys. Laptop keyboards often do not have a numpad, but may provide numpad input by holding a modifier key (typically labelled "Fn") and operating keys on the standard keyboard.

Security algorithms are used to provide authentication, cipher key generation, integrity and radio link privacy to users on mobile networks. The security algorithms supported are the ones that can be used with this product.

Product has a built-in light source for its illuminating.

The colour e.g. red, blue, green, black, white.

Physical effects from which the product is protected e.g. water resistant, crash proof.

What the power source is.

A mouse is included with this product.