Annadue 2 in 1 Wireless Numeric Keypad Calculator Numpad,29 Keys 2.4G Number Pad,Financial Accounting Numpad with USB Receiver for Notebook/Computer

2.4GHz Wireless: This wireless number pad adopts 2.4GHz wireless technology that ensures stable transmission without delay, plug and play. Solar Panel: This calculator number pad has solar panel. When powered by solar energy, this number pad can only be used as simple calculator. Ergonomic Design: This wireless number pad features ergonomic design that ensures comfortable control, easy to carry. 29 Keys: This wireless number pad possesses 29 keys, suitable for laptops, banks, schools, companies, etc. Mode Switch: When using a wireless connection to the computer, you can use keyboard mode and calculator mode, and use the PC/CAL key to switch.