Description: This wireless numeric keyboard with clear LCD display is multifunctional. It can be used as a calculator as well. You can freely switch the two modes (numeric keyboard or calculator) by pressing the PC or CAL key. When used as a calculator, it is solar powered. While when used as a numeric keyboard, you should put in 2 AAA batteries. It can perfectly compatible with your devices that don't have a special numeric key and improve your work efficency. Features: 1. 2-in-1 Numeric Keypad and Calculator with LCD display and USB receiver. 2. Specially designed with PC or CAL key. You can switch and use it as wireless numeric keyboard or calculator freely. 3. Solar power (must in the sunlight): no need to load battery when ONLY use it as a calculator. If you use it as a numeric keyboard, you should put in 2 AAA batteries(not included). 4. Small size. Compact and lightweight. 5. 29 keys design, moderate size: ideal for office. Effectively improve your work efficency. 6. Wide Compatibility: Windows xp or Vista or 7 or 8 or 10, Mac OS 10.3.9 and above. Specifications: Color: Black Material: ABS and Metal Connection: 2.4G USB LCD Display Size: Approx. 77 x 22 mm or 3.0 x 0.9 inch Number of Keys: 29 Battery: 2 x AAA Batteries (NOT included) Solar Panel Voltage: 3V Solar Panel Current: 3mA Compatibility: Windows xp or Vista or 7 or 8 or 10, Mac OS 10.3.9 and above. Package Weight: About 190g Package List: 1 x 2-in-1 Numeric Keypad Keyboard 1 x USB Receiver 1 x User Manual (Other items in the pictures are not included.)1, 2-in-1 Numeric Keypad and Calculator with LCD display and USB receiver. 2, Specially designed with PC or CAL key. You can switch and use it as wireless numeric keyboard or calculator freely. 3, Solar power (must in the sunlight): no need to load battery when ONLY use it as a calculator. If you use it as a numeric keyboard, you should put in 2 AAA batteries(not included). 4, Small size. Compact and lightweight. 5, 29 keys design, moderate size: ideal for office. Effectively improve your work efficency. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.