1) Padless Mouse, that means it will on any surface either on table or floor or even on bed and on rough surface without mouse pad.
2) USB port
3) 1000 DPI
Price: Tk 350/- BDT
It is a good mouse for those whose hands are big and long as it will come a good grip in hand and can use it for long time without stress.
Caution: Not suitable for small hands.