Keysonic 5220BT Compact Layout Wireless Keyboard for Windows Android - Black

The total count of individual key switches or buttons present on an input device such as a keyboard, mouse, or game controller. It includes alphanumeric keys, function keys, navigation keys, and any additional special or programmable keys, regardless of layout or brand.

The total operating duration a product or component is expected to function before it requires replacement or major maintenance, expressed in the unit most commonly used for that item (e.g., hours, presses). This attribute helps users assess how long the device will remain operational under normal use.

The chemical composition, physical size, and typical arrangement of the battery used in a product. It includes common formats such as AAA, AA, CR2032, 18650, or combinations like "2x AAA (Micro)" that indicate both type and count.