Plug and Play! Just plug the USB device into an empty USB port, Wait about 10 seconds and on all of the systems it started working, No drivers to install, No software,easy to control.
Specifics:
1. Solar Panel,no need batteries while use it as a calculator.
2. Smooth shift from calculator to numeric keypad
3. Connecting the USB dongle to the computer, you will have a stable 2.4 GHz connecting and the number pad can be used as an additional keyboard
4. 10 digits and a built-in pocket calculator
5. Compatible with Windows XP / 7 / 8 /10 as well as the MacOS from 10.3.9.

Configuration:

Material: ABS
Color: Black
Operating frequency: 2.4G technology
Interface: Wireless usb 2.0 interfaces
Receiver: USB Receiver,25 feet from the computer.
Key Mechanical working life : The keycaps life of more than 5 million times
System Requirements: Compatible with Windows XP / 7 / 8
Environment Temperature: Operating 5 ℃ ~ 50 ℃, Storage: - 20 ℃ ~ 65 ℃
Relative Humidity: Operation 10% ~ 85% RH 25 ℃，Storage: 5% ~ 95% RH 25 ℃
Solar Panel,no need batteries while use it as a calculator.
10 digits and a built-in pocket calculator
Smooth shift from calculator to numeric keypad
Product Dimension:154*100*15mm
Package Size:20.8*13.6*2.9cm

If anything not satisfied or problem with using it,pls do not hesitate to let us know, Our Excellent Customer will try our best to solve it.

• 1. 29 keys,2.4G mini wireless numeric keyboard, 25 feet from the computer,can be used either as a calculator or as a remote numeric keyboard for the computer.
• 2. It can work with PC and desktop computers that have Windows XP/VISTA/WIN7/WIN8/MAC OS X 10.3.0 or above.
• 3. Solar power (must in the sunlight) so that users don't need battery when ONLY use it as calculator. While if you need to use it as a numeric keyboard, it must install 2AAA battery (not include in the package). When install battery, you can press"CONNECT" key to connect it to the computer, then you can press "SEND" key to send the calculate result to PC.
• 4. Four rubber feet on the bottom keep it firmly in place,10 digit LCD screen is large and very easy to read.
• 5. For connect it to your computer,connect the USB dongle to your computer. Press the blue connect and you will see a wireless connection symbol appear. Press the PC/CAL button and a K will appear in the upper right portion of the LCD display.

1. 29 keys,2.4G mini wireless numeric keyboard, 25 feet from the computer,can be used either as a calculator or as a remote numeric keyboard for the computer.potato limited