Lenovo n50 is a wireless mouse.
mouse is a computer instrument or peripheral which assists to control the cursor and handle cursor on monitor desktop or laptop.
mouse comes in wired format with usb connector.
but this lenovo mouse is wireless one.
good things about this mouse:
wireless installation with the laptop is very fast
easy installation for laptops
cursor moving speed is very fast
you can handle your laptop from long distance. that is you can handle laptop even if it is far away from you in a room.
overall its a good product, one who hates so many wires around your laptop should buy this.
Cheers, :)