So, the sennheiser hd 4.40 BT is a piece of art. I mean I personally like its design..it has quite a nice build and it is widely stretchable without any kind of creaking noise or so.
So let's talk about the pros first

Pros:
Good build
Both wireless and wired usage available
The ear cuffs run deep and is quite comfortable on the ear.

Perfect bass and not overpowering. I personally like good music and I don't like bass that kills all the remaining aspects of the music. So it's perfect for me...

its noise cancellation is so good that when its ok, I can't even hear my own thoughts..

i love the headset it's perfect for my day to day listening of music movies etc m I download the captune app and you can change the treble bass etc .. as per your hearing needs ... passivecancellation 😅.. for best results use an iPhone and with the cord .. it's crazy ... I used it on Samsung s8 it wasn't as effective as the iPhone .. but it was good to be honest...

I fallen in love with Sennheiser HD 4.40BT. This is a Bass Beast.. intially bit struggled to get acquainted with the buttons functionality. it's not user friendly for the new user.. complex to learn and maintain. but after using 5-7 days.. you would get familiar with the operating parts..

My Ratings
Music experience- 9.9/10
Battery Backup-9/10( even if inverters are not giving 25hours battery backup)
Bass/Treble-9/10
operating procedures-5/10 (not user friendly for first time users as no ...

Great listening experience ....quick to connect ....overall great experience

Believe me you will never move to any other headphones.I used many but this one is my discovery to fulfill my desires and moods. Once you put on these headphones, you are in heaven. Be it bass, treble or any feature mmmmmmmmmmm.

4 star because the bass is little less for bass lovers(use Captune app to adjust bass and treble), This review I am giving after heavy usage of Headphone. The sound quality is super with good vocal and treble. Sound clarity is too awesome in fact you can listen to every beat of the music. Comfort wise it will touch your heart but for large ear, guys need to manage.

Battery backup is no doubt, excellent it's my 3rd day and still power is more than 60%.

as its having a dual mic and Bluetooth...

awsome product. awsome sound

Just awesome.... I heard probably every highend headphones but.... Under 10000 this is the purest sounding headphones you can find... And when I heard skullcandy hesh3 and crushers.... There sounds is not true... It kind of like a annoying person set the equliliser at any random and sounds like edited not the true one.. Which kind of sucks...and if you talk about comfortably again they are the most comfortable headphones under 10k... And if I compare them with BOSE QC 35 II then let me t...

Sits comfortably as a head set. Noise reduction is excellent. Bluetooth works well with phones. Sound clarity is quite good for the price. Looks really nice, I have black colour model not sure if there are more colours. Comes with connecting cable in case bluetooth does not work with any device. Bluetooth did not work with Sony 4K TV. Sound control, song skip, pause works quite well and placed comfortably on the product. Even after using for long did not see sweat on the ear section. Hope th...