This product of Micromax is very good.
I have bought this dongle from amazon at a great discount price. I have bought this for rs. 850/- from amazon and got delivery in 3 days.
Coming to the specification of this dongle. It supports 2g and 3g services, it supports all sims to use whether 2g or 3g.
It was good at starting. But however after sometime it stops working suddenly while working. This was really disappointing. However after uninstalling and reinstalling the software again makes it working.
At the end. It is a product at a price worth of it.
Totally satisfied with it.