Vbestlife Mini 2.4G USB Wireless Numeric Keypad - 29 Keys Calculator

Description: This wireless digital keyboard with clear LCD display is multifunctional. It can also be used as a calculator. You can freely change the two modes (numeric keyboard/calculator) by pressing the PC/CAL. When used as a calculator, it is powered by solar energy. When used as a numeric keyboard, you need to put 2 AAA batteries. It can perfectly compatible with your devices that do not have a special digital key and improve your work efficiency. Features: Colour: black. Material: ABS + metal. Connection: USB 2.4G. LCD screen size: approx. 77 x 22 mm/3.0 x 0.9 inches. Number of keys: 29. Battery: 2 x AAA batteries (not included). Solar panel voltage: 3 V. Solar panel current: 3mA. Compatibility: Windows xp / Vista / 7/8/10, Mac OS 10.3.9 and above. Package weight: approx. 190 g. Package contents: 1 x 2-in-1 digital keyboard. 1 x USB receiver. 1 x user manual. (Other items in the picture are not included.)