1.Can the mouse be used on a laptop?

Yes ,can be used on Laptop / Notebook / Desktop Computers

2.Is it easy to carry?

Yes perfect for use at home, office or a business trip

3.What is the biggest feature or advantage of this mouse:

Ergonomic Design& Ultra-thin Outlooks: Lightweight

4.Does the mouse save battery power?

yes, the mosue has sleeping funtion,

If you do not use it for more than five minutes, it will automatically enter sleep mode.

5.can you tell me what is the DPI of the mouse?

Touch DPI key?800/1200/1600/2000/2400  level to choose

6.How long is the working distance of the mouse?

Is 5-10M, Flexible for using