CALCULATOR NUMERIC KEYPAD FUNCTION 1. 2.4 GHz Wireless: This wireless numeric keypad uses 2.4 GHz wireless technology, ensuring stable transmission with no 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: Designed for comfort and portability, this wireless numeric keypad offers an ergonomic layout. 4. 29 Keys: Includes 29 keys, ideal for use with laptops, in offices, schools, banks, and business environments. 5. Dual Mode Switching: Supports both keyboard mode and calculator mode; switch between modes using the PC/CAL key. Specifications: Item Type: Calculator Numeric Keypad Material: ABS Number of Keys: 29 Interface: USB Connection: 2.4 GHz wireless Key Switch Technology: X-architecture Power Source: 2 x AAA alkaline batteries (batteries not included) Compatibility: Universal Package Includes: 1 x Calculator Numeric Keypad, 1 x USB Receiver, 1 x User Manual