Setup, Design & Observations
The build quality of the Isurus Pro feels good and the design is attractive, but the weight does feel a little high for an in-ear solution. The use of replaceable silicone inserts tends to be fairly standard across many products in use today but has its pros and cons. The inserts are washable and aid in noise cancelling and comfort, some may dislike this style of insert and find them uncomfortable. For me, even with the smallest size, I found the Isurus Pro to be a little uncomfortable for long periods of time (over an hour) and I believe this to be attributed by the weight, creating pressure on my inner ear. This is despite the fact that the secure fit system, IE. the red hook inside your ear, actually felt good and worked well.
The removeable microphone pulled out easily, and secured back in as you would expect from any jack but was relatively inflexible due to the steel band it is mounted on. When you remove the microphone, the second microphone will kick in by default which is handy for on the go so you don't have a large boom microphone if you choose to use the Isurus Pro with your mobile phone. The buttons on the in-line remote click nicely and feels solidly put together and you can answer/end calls using the play/pause button. There is no mute switch however, which some may find annoying.
The included carry case is a zip open pouch where you just stuff the headset into. The removable microphone needs to be removed to fit inside, and because there is no moulded houses for the ear buds, you literally have to scrunch them up and jam it inside. This could have been better if it was a more professional looking case with foam inserts to well look after your headset.
Multimedia
On listening to various known music tracks, the deep bass proved quite smooth and punchy. Listening to 'Lockyn-Hiatus' the variations between the deep bass and bright mids and treble revealed various weaknesses in its precision, with the bass not being as tight as I know it to be, the mids feeling spongy and the treble having lost its edge a little. The overall experience is enjoyable, but it became hard not to notice the missing details.
In gaming the Isurus pro gave a surprising kick to the action in FPS games, those large (for in-ear) drivers really making that deep bass work. In DOTA2, in game sound effects were accounted for, but didn't give quite that open soundscape that I had hoped for.
Microphone
The removable microphone gave clear voice transmission with only a little background static (with no audio filtering enabled), the removable microphone can also be used for good quality mobile voice calls. Using the in-line microphone via the PC, it is as expected, tinny and not great, though in mobile voice calls it was perfect and was able to pick up voice messages competently.
