The VP6273 Bluetooth Calculator Keypad increases productivity for notebook users. This Bluetooth numeric keypad combines the functions of a ten-key for spreadsheet data entry and a standalone calculator for the ultimate convenience. The VP6273 features an on/off switch, 12-digit LCD display and OS selector switch for 100-Percent Mac/Windows compatibility. A built-in SEND key sends the calculated result directly into a spreadsheet to eliminate typing errors. No need to carry a receiver dongle when used with a Bluetooth system, the device offers Bluetooth transmission range up to 33 foot / 10-meter. Carry the 2-in-1 Bluetooth Calculator Keypad and travel light.On August 15, 2007 SMK Electronics Corporation, USA acquired Interlink Electronics' Branded and OEM Remote Control Divisions. As a result, SMK-Link Electronics Corporation was formed. SMK-Link, based in Camarillo, CA is the exclusive manufacturer and marketer of Interlink Electronics branded presentation products. SMK-Link supplies Interlink-branded presentation products to corporate, government and educational markets. Designed to increase the effectiveness of PowerPoint presentations, Interlink's branded products include presentation remote controls, wireless keyboards and ultra-portable presentation speaker systems.