Wireless keyboards and mice can be divided into two types: those that require batteries and those that require charging.
< br >
1. Wireless keyboard and mouse that require batteries: This type of wireless keyboard and mouse usually uses AA or AAA batteries, and some use dedicated batteries. When the battery is low, replace the battery. This type of wireless keyboard and mouse is usually cheaper, but requires constant purchase of batteries.
< br >
2. Wireless keyboard and mouse that need to be charged: This type of wireless keyboard and mouse usually uses a built-in battery that can be connected to the computer via a USB cable or charged using a dedicated charger. This type of wireless keyboard and mouse is usually more expensive, but can be recharged and last longer.
< br >
In general, wireless keyboards and mice that need batteries are cheaper, but you need to keep buying batteries; Wireless keyboards and mice that need to be recharged are more expensive, but can be recharged and last longer. Which type of wireless keyboard and mouse to choose can be determined according to your needs and budget.
There is no difference in function, and the selling point is that there is no need to change the battery for charging. In fact, the wireless keyboard and mouse set consumes very little power, and a battery can be used for a long time. The cost of rechargeable batteries is only one investment away from the cost of ordinary batteries.