CALCULATOR NUMERIC KEYPAD FUNCTION 1. 2.4 GHz Wireless: This wireless numeric keypad uses 2.4 GHz wireless technology, ensuring stable transmission without delay; plug and play. 2. Solar Panel: This numeric keypad features a solar panel for power. It functions as a basic calculator when powered by solar energy. 3. Ergonomic Design: The keypad is ergonomically designed for comfortable use and portability. 4. 29 Keys: Includes 29 keys, suitable for use with laptops, in banking, eon, and business environments. 5. Switch Mode: Supports keyboard mode and calculator mode; switch between modes using the PC/CAL key. Specifications: Item Type: Calculator Numeric Keyboard Material: ABS Number of Keys: 29 Interface: USB Connection: 2.4 GHz wireless Button Technology: X architecture Battery Type: 2 x AAA alkaline battery (battery not included) Compatibility: Universal Package Includes: 1 x Calculator Number Pad 1 x Receiver 1 x User Manual