Bluetooth keyboards use the Bluetooth protocol to allow wireless connection to the computer. These keyboards are becoming increasingly popular, since most new computers are Bluetooth-enabled, and this form of wireless connectivity has proven to be very stable.
Wireless Bluetooth Adapters
If you want to connect your existing USB keyboard wirelessly to a Bluetooth-enabled computer, one way to achieve this is via a wireless Bluetooth adapter. Wireless Bluetooth adapters allow existing USB keyboards to effectively become wireless.
Wireless Bluetooth adapters use 128-bit encryption and Frequency-Hopping Spread Spectrum (FHSS). These technologies allow data to remain safe and secure.
Bluetooth keyboards have become increasingly affordable and do not require a USB to Bluetooth adapter.