With Rapoo"s latest energy saving technology and power switch , you can use your keyboard for up to 24-month and the mouse for 18-month without power interruption. Fn key gives you quick access to media player, homepage, volume adjustment and etc from keyboard. Responsive and smooth cursor control with 1000 DPI high-definition invisible tracking engine from mouse. Reliable 2.4GHz wireless connection with up to 10m working range. Product Model: 9060K. Product Name: 9060K Wireless Keyboard Mouse Combo. Product Type: Keyboard Mouse Combo. Color: Black. Connectivity Technology: Wireless. Wireless Technology: 2.4Ghz RF. Host Interface: USB. Mouse movement detection: Optical. Mouse movement resolution: 1000 dpi. Mouse number of buttons: 3. Package Contents: 9060 Wireless Keyboard Black, 9060 Wireless Mouse Black, USB Nano Receiver, Quick start guide, 2x AAA alkaline batteries (pre-installed).