Blackwidow Ultimate 2013 uses Cherry MX Blue switches, distinctive for their "clicky" sound, while the Stealth version uses Cherry MX Brown. You can read some real superb info here from our own LYN keyboard enthusiasts. For me personally, I prefer Cherry Blue switches as I type and also game a lot, so the "clicky sound" is definitely a plus point for me. I nearly wanted to get the Ultimate 2013, but I finally settled for the cheaper CM Storm Trigger which is nearly RM80 cheaper. But too bad it can't match with my DA 2013 (red vs. green lighting). And yes, the DA 2013 is indeed the best mouse that I've owned and used.

At first I wanted to go for Brown, but after some "hands-on", I terus got poisoned by the Blue clicky sound and feel. Haha, I guess I will just settle with my DA 2013, real nice mouse. Btw, how is your Kana Dota 2? Saw from your siggy.

That's enlightening. Thought of trying it out, since it comes with a nice bundle. The default DPI steps are 400-800-1600-3200 right? This is done by clicking the DPI button right? Without any softwares?

Meaning if we install the software, and then set the DPI to e.g 800 - 1600 DPI, I can only switch between these 2 settings via the DPI button? Wah, if the DPI are fixed and can't change other than the pre-defined settings, then it's definitely a minus point for me.

The "breathing" effect of the DA2013 is always on, once you choose to switch on the LEDs for the logo. There isn't a way to make it permanently on at all times.

If not mistaken, the Refresh is blue LED lit. The 2013 version is green LED lit. The outer packaging shows the razer logo on the center of the mouse in green color.

I would recommend dropping by any retail shops to have a look at the surface. From the official website, Control is marketed as having a heavily textured weave that creates the right amount of friction, so you get pixel-precise targeting for absolute in-game accuracy, while Speed is marketed as having a slick and seamless surface so that your gaming mouse glides quickly with zero hindrance. For your case, since you have such a high DPI for your mouse, it would be nice to pair with the Control.

For me, I personally use Speed and paired with a 2.6k DPI setting, it works just fine for me. So I find it to be a case of adjusting and getting ourselves used to the mousepad.

Mine works just fine though.

Yup, sounded like it suppose to I guess. Definitely no squeaky sound. Send your back for exchange.

Usually retail shops only offer 7 days 1-1 exchange, but yours until 1 month. Do send it back for an exchange then, and hopefully still have stocks.

LOL, I've never bought anything from Jayacom before though. Last time I went there, the sales person wasn't even interested in doing business with me at all.

Nevertheless, since you have a supposedly defective product, I believe it's your right to have a replacement for it, since it's also clearly stated that they will exchange 1-1 for the 1st month.