Quiet Button Design Left and right buttons produce little noise when you click them. Perfect for public places such as offices, libraries, dormitories, internet Cafes where you do not want to disturb others or interrupt your concentration. Power Saving Mode and Power Switch off If the mouse stays out of work for 8 minutes, it will turn to power saving mode, press any button to restart it. If you turn off the PC or take out the Nano receiver from the USB port, press any button or move the mouse to enter the power saving mode.
Specification Press-key Quantity: 7 Buttons(including scroll wheel) DPI: 800-1200-1600-2000-2400 Power Source: 1*PCS AA Battery(Not included)