QHMPL.
This model is the only varient at this range and available only in two colours i.e; RED and BLUE.the blue colour varient is very rare and difficult to find and as soon as it hits the market its stock gets over very soon at amazon.
its features are:
it has 20 buttons out of which 3 are extra or which are not found on oyher controllers which are programmable which makes it very user friendly.
it has a rubber grip which is very important and is rare to find in any controller at this range so it gives a very good value for money.
3.the vibration motors are very powerfull and gives a very real like experience.
4.the built quality is very good then it looks like in the picture.
the only problem so far is the brand, although it gives a 1 year warranty but it takes it 2 weeks to come back from the service centre .
but overall its a very nice product and worth buying .and if you are worried of waiting for 2 weeks dont worry as it would not break or missfunction untill you accidently damage it very hard.
so its a REALLY GOOD DEAL.