The Number Slide’s retractable number pad slides out when you need it and away when you are finished. This feature delivers important ergonomic advantages over conventional standard or mini keyboards. Number Slide reduces the distance you need to reach and use your mouse, which allows you to adopt a more comfortable and suitable posture. This encourages a good arm/shoulder position when using your mouse. Being so compact, Number Slide frees up space at your workstation so you can bring work closer to you without compromising functionality. Bluetooth connectivity. English. Sold by each. Black.