Most wireless keyboards and wireless mice use 5 batteries, and some use 7 batteries. No. 5 battery: (i.e. AA) is one of the battery types, and the most common one we see is the No. 5 battery
Wireless keyboards offer many benefits. They can help reduce desktop clutter by getting rid of cables for a neater look, or they can free up more space on the desktop for gaming. As wireless technology has improved over the past few years, they are now on par with cord-only gaming features and latency options. There are plenty of wireless keyboards, from low-key office options to full-size mechanical game boards. That said, finding the wireless or Bluetooth keyboard that best suits your needs depends on how you plan to use it.
Battery number five.
Most wireless keyboards and wireless mice use a 5 battery, and some use a 7 battery.
No. 5 battery (i.e. AA) is one of the battery types, and the most common one we see is No. 5 battery. Its general size is 14mm in diameter and 49mm in height. Because of its small size and moderate capacity, the No. 5 battery is widely used in many small electrical appliances and digital products.
Use the Nanfu battery five. It doesn't have a charging function.
The 5.8GHz band is an open ISM band with a higher frequency than 2.4GHZ, providing three 100MHz U-NII (License-free National Information Infrastructure) bands for high-speed wireless data communications