Description:This wireless numeric keyboard mouse set help you control your computer easily through an optical mouse and input number conveniently with a 22-key numerical keypad. 2.4GHz nano receiver makes connection between computer and keypad, mouse very stable and smooth. And 1200DPI enables the mouse to work more flexibly and smoothly with no delay.Features:22-key Wireless Numerical Keyboard - Helps you input numbers more conveniently and more directly.1200DPI Optical Mouse - High sensitivity up to 1200DPI enables the optical mouse to work more flexibly with no delay.2.4GHz Nano Receiver - This wireless numeric keyboard mouse set connect both keyboard and mouse to a computer through plugging the 2.4GHz nano receiver to the USB port to achieve stable and smooth number input and mouse operation.Plug and Play - After plugging the receiver to a computer USB port, the wireless numeric keyboard and optical mouse will work normally with no software or driver required.Portable - Wireless design and mini size, light weight allow you to carry it to everywhere you want.Specifications:Product type: Wireless Numeric Keyboard Mouse SetConnection: 2.4GHz nano receiver, wireless connectionOptical resolution: 1200DPIPlug and play: SupportKeyboard keys number: 22 keysPower supply: Keyboard: 1 * AAA battery; Mouse: 1 * AA battery( not included)Package size: approx. 21 * 10 * 5 cm/ 8.27 * 3.94 * 1.97 inPackage weight: 201gPackage List:1 * Wireless Numerical Keyboard1 * Optical Mouse1 * User Manual