CALCULATOR NUMERIC KEYPAD FUNCTION 1. 2,4GHz Wireless: This wireless numeric keypad uses 2,4GHz wireless technology, which ensures stable transmission without delay, plug and play. 2. Solar Panel: This calculator numeric keypad has a solar panel. Powered by solar energy, this numeric keypad can only be used as a simple calculator. 3. Ergonomic Design: This wireless numeric keypad has an ergonomic design that provides comfortable control and is easy to carry. 4. 29 Keys: This wireless numeric keypad has 29 keys, suitable for laptops, banks, schools, businesses, etc. 5. Switch Mode: When using a wireless connection to your computer, you can use keyboard mode and calculator mode and switch using the PC/CAL key. Specification: Item Type: Calculator Numeric Keyboard Material: ABS Number of Keys: 29 Interface: USB Connection: 2.4G wireless network Button technology: X architecture Battery type: 2 x AAA alkaline battery (battery not included) Applies to Type: Universal List of packages: 1 x Calculator Number Pad1 x Receiver 1 x User Manual Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!