Extra control right where you need itTwo customizable thumb buttons make it simpler and faster to get things done.A new, more powerful scroll wheelThe new Dual-Axis wheel gives you instant access to the App Switcher and Charms Bar.Our smallest receiver everJust 3 mm long, our plug-and-forget pico receiver practically disappears in your computer痴 USB port.Work and play longerYou値l get up to 18 months of battery life from a single AA.Two extra thumb buttonsExtra control is right where you need it, so it痴 simpler and faster to get things done. They come programmed for Windowsｮ 8 Start screen and Desktop switching functions, but can be configured to do exactly what you want them to.*FEATURESLogitech Advanced 2.4 GHz WirelessYou get the reliability of a cord with wireless convenience and freedom庸ast data transmission and virtually no delays or dropouts.18-month battery life**With up to 18 months of battery life from a single AA, you can almost forget about changing batteries. Smart sleep mode and an On/Off switch save power, while an indicator light eliminates surprises.Logitech Advanced Optical TrackingLaser-grade precision tracks over the most challenging surfaces擁ncluding smooth, glossy surfaces***葉hat are problematic for standard optical mice. All while using less power, so you get longer battery life and more convenience.3 Years Local Manufacturer WarrantyLogitech Advanced 2.4GHz Wireless ConnectivityPlug-and-Play Nano Receiver12-Month Battery LifeEasy ScrollingSmooth,Responsive Cursor ControlWindow,MAC,LinuxFor Any Query Please Contact Bizgram Asia Pte Ltd +65-87776955