Sennheiser IE 100 PRO Wireless Monitoring Earphone - CLEAR with built-in mic for your mobile phone, PC or tablet. Passive noise cancelling & 10hours battery life

Sound quality: neutral sound, a bit on higher side. Low is very good and clear. Sound signature is really of my taste. Crystal clear, crisp, on point sound. Most noticeable attribute is sound stage. Very wide spacious sound stage.Build quality: very comfortable and light. Best fit in ear. But feels delicate specially on the point of connectors.Connector: the connector is not typical ‘MMCX’ type. It is Sennheiser exclusive connector. This is the only drawback i have found. A universal connector helps in having choices over buying different quality and of different length of cable. Though the cable quality is very good. Soft and durable.Bluetooth connector: Bluetooth connector is just for casual listening. I noticed a huge difference in sound stage while shifting from wired to Bluetooth connector. With Bluetooth connector it sounds just like any other Bluetooth earbuds half the price. So I never use Bluetooth. It is just for ‘just in case’ type of purpose.Overall I found it to be really good sounding and best fit among all other earphones in my collection. I have bought it in 8.7k with Bluetooth adapter which is a great deal.** The wireless version is not just wireless. It comes with both 'Bluetooth adapter' and '3.5mm cable'. So wireless version is basically the wired version along with an additional Bluetooth adapter. See the box contains in my uploaded picture.

I love these IEMs. Probably will be nitpicking things that are stopping it from being the greatest pair of affordable IEMs ever created.Cons:1) It looks archaic. The two dangling modules look ugly. I wish Sennheiser comes up with better looking blutooth modules in the next version that wraps around the ear and doesn't have flimsy wires like the current one. No complaint with 3.5 mm wires though.2) A little more range. I like to have the freedom of walking around different rooms while forgetting about the range of a BT earphone. So when I go a little further than expected, the earphones start crackling a bit. A little more range wouldn't hurt anyone.3) I've noticed my right bud has a noticeable driver flex. Not annoying. But I notice it from time to time.4) Poorly recorded music sounds poor. Not a con, but the IEMs do justice with clarity. Any unwanted distortions become very apparent.5) I use it with Windows OS as well. It's an absolute nightmare with windows. Connectivity issues, voice lag, poor quality while calling. It's a whole package. All of it could be solved if Sennheiser made a native control app for windows. Plus, if it also had an Equalizer.Pros:1) They sound good. Good bass, decent mids and treble. The stock tuning sounds great. Though I have noticed distortions while using tweaking the frequencies to the extreme ends on an Equalizer, but nothing too serious.2) They are cheap if you manage to get a good deal on them.3) I love the interchangebility of wires. I edit music with wires and casually listen to it without them. It also means that I don't have to throw the pair when the wires go bad. I can simply get new connectors which is cheaper in the long run.4) They're mad comfortable. I had a pair of galaxy buds, this made them look like ear dumbbells. I can wear this for hours with 0 discomfort once I get the fitting right.Verdict:Sound: 8/10Value for money: 8/10Comfort: 9/10Appearance: 7/10

earfones are really good from every aspect, but only problem im am facing is , i have downloded the App Name Smart Control, and i am not able to connect or Add my device in an App., Its just Denying every time i try to Add. Dont know what to do about it, Reinstalled 2 Times the App, Please suggest if anyone knows the solution. Thanks.

Quality of sound is not like what sennheiser offered, because I used sennheiser in past they were best. Don’t buy friends this totally wastage of money

Fantastic sound and qualitative build quality

Sound amazing and comfort