Main Features1. 2 in 1 Mouse: 2.4GHz optical mouse + 6D gyroscope fly air mouse.2. Wireless working distance: 10m.3. 4-Levels DPI Adjustable: 600/800/1200/1600DPI.4. Nano USB receiver, plug and play.5. 6D gyroscope fly air mouse, control conveniently, easy to use.6. Support system: Windows 2000 / XP / Vista / 7, Android, OS etc.7. Arched shape provides support for your hand in a natural and comfortable position.8. Battery mode: 2 x AAA battery (not included).Instruction for use1. Press the Storage Key to open the battery compartment.2. Take out the USB receiver form the battery compartment, plus it into a USB host on your PC.3. Insert 2 AAA batteries with correct polarity (+/-).4. Close the battery compartment.5. Slide the power switch to the ON position.6. After use, insert the USB receiver into your mouse battery compartment for storage.Switch the mouse mode1. The mouse is optical mouse default. 2. Click the Mode Select Key: The mouse goes to air mouse mode, Click the Mode Select Key again, the mouse returns to optical mouse mode.Pairing the mouseIf the mouse not working while new batteries in the mouse, you should try to re-Pairing the mouse:1. Click the pairing button one times, the mouse into pairing mode2. Re-plug the USB wireless receiver into USB port of the PC3. Wait 30 seconds, if the mouse still does not work, try again (1.2.), it may take several tries before you are successful.