usb wireless numeric keypad

Numeric keypads commonly offer Bluetooth, 2.4 GHz (radio-frequency) wireless, and wired USB connections. Connector types listed include USB‑A, Micro‑USB and USB‑C, and some models support multiple modes (for example Bluetooth or RF plus a wired USB option).

Wireless numeric keypads use several power options: built‑in rechargeable batteries (often lithium‑ion), removable cells such as a single AAA alkaline, or other non‑universal lithium battery packs. Some rechargeable models advertise multi‑week runtimes, while removable‑cell models may ship without batteries.

Many numeric keypads list compatibility with Windows and Android. Other models also note support for Mac OS X and older Windows releases. Actual compatibility can depend on the connection method (wired USB, Bluetooth, or RF).

Some numeric keypads combine a PC numpad with a standalone calculator mode, include a calculator shortcut button or dedicated calculator controls, and add a numeric LED display for quick feedback.

Numeric keypads use various switch types, including mechanical switches, dome switches, and membrane switches. Mechanical models may specify particular switch names, and keycaps are commonly made from PBT or ABS plastic.

Many wireless numeric keypads are plug‑and‑play: insert the USB dongle and start using the keypad without installing drivers. Other models support Bluetooth pairing or can operate via a wired USB connection as alternatives.