Features 2.4G Wireless Technology. Adopt the 2.4G frequency technology, working distance can reach to 8M-15M, 2.4G will give you a more comfortable, convenient and exact effect than the traditional FM radio wireless mouse 5 Adjustable Response Levels: 800, 1200, 1600, 2000 and 2400 DPI levels let you adjust the mouse's responsiveness to suit certains games and other programmes. Energy Saving Mouse: Auto Power Off (APO)- the mouse will be switched off automatically when the USB Nano receiver is disconnected with your pc, or the PC is switched off. 18-month battery life on 1 AA battery practically eliminates the need to replace batteries. Battery life may vary based on user and computing conditions For Windows, Mac and Linux: Reliable wireless connection with Nano-receiver that can stay in your laptop.