Sennheiser HD 4.40 BT Over-Ear Sound Isolating Headphones - Black

  • Model #: HD 4.40BT
  • Web Code: 10582163
Sold and shipped by: Best Buy
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Enjoy high-quality sound and less of the noise around you with the Sennheiser HD 4.40 BT over-ear wireless headphones. The sound-isolating design helps minimize ambient noise, so you can enjoy your chosen music, movie, podcast, or audio book. Bluetooth 4.0 technology with aptX audio deliver true hi-fi sound.

More Information

  • Bluetooth 4.0 wireless technology, with fast NFC pairing, and aptX audio let you stream true hi-fi sound from your compatible smartphone, tablet, laptop, MP3 player, or other audio device
  • Over-ear closed-back headphone design covers your ears completely to isolate sound for a completely immersive listening experience
  • Integrated microphone lets you pick up calls and give voice commands to your connected smartphone
  • Ear cup-mounted call and track controls let you keep your device in your pocket, or another room
  • Long-lasting battery provides up to 19 hours of talk time
  • Made with high-quality parts and carefully chosen materials for dependable use, year over year
  • Lightweight, foldable design makes the headphones compact enough to take anywhere
  • Durable carrying case included for protecting the headphones when you're not using them
  • Includes a 1.4m audio cable for use if power runs out or with older non-Bluetooth devices
  • Comes with a micro USB charging cable

What's in the Box?

  • 1.4m Audio Cable Supplied for Use When Power Runs Out
  • Micro-USB Charging Cable
  • Supplied Storage Pouch


  • Parts - 2 Year(s)

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  • Headphone Style
  • Primary Headset Usage
    Music Playing
  • Band Style
  • Sports & Fitness Ear Clip
  • Sound Isolating
  • Noise Cancelling
  • Echo Reduction
  • Wireless
  • RF Wireless
  • NFC Ready
  • Wireless Talk Time
    19 h
  • Wireless Standby Time
    19 h
  • Charge Time
    2 h
  • Effective Wireless Range
    10 m
  • Designed For Gaming
  • Designed for Sports
  • Designed for Kids
  • DJ Style
  • Professional Grade
  • Water/Sweat Resistant
  • Inline Volume Control
  • Built-in Mic
  • Fitness Tracking
  • Heart Rate Monitor
  • Folding
  • Step Tracking
  • Cord Length
    1.4 m
  • Plug Material
  • Plug Size
    3.5 mm
  • Plug Shape
    Right Angled
  • Ear Cushion Material
  • Power Source
    Li-ion Polymer Battery
  • Frequency Response
    18 - 22000 Hz
  • Impedance
    18 Ohm
  • Colour
  • Colour Family
  • Weight
    354 g
  • What's in the Box
  • Warranty Parts
    2 Year(s)



Customer Reviews

3.9 / 5
Based on 18 review(s) More about Customer Reviews

Ratings in Detail

  • 5
  • 4
  • 3
  • 2
  • 1

Positive vs. Critical Reviews

Positive 77%

14 Reviews

Critical 22%

4 Reviews

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  • from Burnaby, BC

Great Over-Ear Headphones

I really like the simplicity of this headset. It feels durable as well. It has really clear sound quality for it's price point. Music sounds more "open" compared to other bluetooth headsets I've tried! What's really nice: Sound Quality, Microphone, Aptx (great for watching Youtube without lag), Comfy earpads (for me, some people think they're too small though), replaceable parts, sleek & low profile (easy to wear a hood over), Wired Option, Battery Life. You can tell this was designed in Germany. Ridiculous value!

  • from Ottawa, ON

Great Value

Headphones are very durable and comfortable. The Battery lasts a very long time as advertised. My only complaint is that the max volume isn't very high when connected to my phone. The volume raises when I am connected to my laptop.

  • from Kingston, ON

Sound is Good, But Very Uncomfortable

Sound is good, wireless is nice. But they're super uncomfortable. The cushioning on the head band is practically non-existent. The ear cup cushions are nice, too bad they couldn't have added that to the band. I had to take them off after 10 minutes.

  • from North Bay, ON

Great headphones

I bought these to replace the Skullcandy Crusher’s I bought last year. The Crusher’s started cracking on the left band by the headphone speaker. Definitely won’t be buying those again. These Sennheiser’s give you a nice clear sound with the perfect amount of bass for the basshead who loves their bass-infused music (I’m one of them). Only slight gripe I have is that the sound is slightly quieter when using them in Bluetooth mode. Definitely recommend these bad boys. To the last reviewer (Chris from London): have you tried using the headphones with the supplied headphone jack?

  • from straight outta east side 6ix

Great headset

I have had these for about 8 months now and they are amazing. They sound better with bluetooth than with a wire because I have aptx audio in my phone (most android phones have it). I did get these on sale for 100, which is amazing value, at full price I would still buy it. Only downside is no noise cancelling, but that means better sound quality compared to something from bose. They have nice, smooth bass, and still very good mids. High's are a little weak as are all other bluetooth headphones. Microphone quality is actually very impressive too. The only real downside is the ear cups. They are a little small and can get a little uncomfortable after a while, which is why I did 4 star instead of 5.

  • from London, ON

Won't Turn on after 2 months

not 2 months old and the power button won't actually even turn on the headphones. Uncomfortable as well , hot sweaty leather. Crap , save your money

  • from Saskatoon, SK

Really comfortable and great sounding.

I like using headphones better than earbuds so comfort is a big deal for me and for most people for that matter. I find these headphones to be very comfortable! I can wear them all day and my ears won't hurt after taking them off...unlike Dr Dre Beats that are more in price too! The sound is very clear and crisp however the loudness level is not crazy, which is fine for me because I never blast music while listening. Definitely worth the price! :)

  • from Peterborough, ON

Awsome headphones

For the price, best sound I found.

  • from Peterborough, ON



  • from Brampton, ON


Good in all but if sound is what your looking for this is not. Bad part is you cant return it or exchange it. ...ask for sound quality, don't be fooled for the sound they offer in store but, for the sound you're looking for.

  • from Calgary

Good quality and sound. Earmuffs too small.

Good quality and sound. Earmuffs too small. Is not very comfortable to my ears because the earmuffs are not roomy to accommodate the whole ear.

  • from Ontario, Canada


I bought these headphones at a really good price, I absolutely love them. The battery life is unbelievable, they are really comfortable, i bought them a week ago and they are only at 90% battery.. This was my first experience with Bluetooth headphone..and the SENNHEISER brand. I am reeeally impressed and so will you when you buy them.

  • from Edmonton, AB

Hands Down The Best Sounding Headphones In It's Price Range.

The Sennheiser HD 4.0BT are under rated and I see why. At first glance they don't look like consumer friendly headphones but skip the presentation, you will discover this is a gem. The sound is phenomenal with unheard of prices. Bass is the perfect amount, highs and mids are vibrants and the lows have a subtle presence. In my opinion these headphones sounds better then the Beats Solo 3, not by far but enough to brag at my price I still out performed you. If you're a headphone novice look no further because these are it. I suggest you listen to a demo at a BestBuy store and hear the difference.

  • from Saint John, NB

Dollar for Dollar Best Sounding Cans But......

As the title suggests, my opinion is that these are the best sounding wireless headphones at this price point. Clear, crisp and clean sound. You need to use the aptX codec to really take advantage of these cans. In addition, a preamp simply amplifies the quality sound pun intended. The built quality feels sturdy & solid. Some may feel it is too heavy but if it's too light, then it would feel to flimsy. Pairing and battery is second to none - easy pairing b/c NFC & 25 hour play time is more than most need. Having said this...there are 3 problems with these cans. 1) the ear pads are too small - these are over ear cans and I need to scrunch my ears in...ouch 2) the material used on the ear pads make your ears super hot - I needed adjust the cans every 15 minutes. Great sound but poor fit. Make sure you try them on first!!

  • from Niagara Falls, ON

Good set

The sound was good. Easy setup to tv. Had to return them because you can't adjust the headset, kept falling off my head every time I moved.

  • from Vancouver, BC

Wish I hadn't bought these

My title says it all....I was looking for a basic BT over ear headphone and after reading many reviews I decided to purchase the Sennheiser HD 4.40 BT headphones. Now the sound is decent for the price, they paired quite easily with my iPhone 6 and they seem to have decent range away from the phone as well. The biggest issue for me is after 15 minutes of wearing them they absolutely hurt my ears! Not the sound, but the fit! The biggest issue with the purchase of headphones is you CAN'T RETURN THEM and so you are totally reliant on reviews. Even going into Best Buy didn't help as there were no sample headsets OF THE 4.40 BT to try on. The salesman gave me another pair that he said was comparable and after 1/2 in the store with them on listening to music I thought that they weren't that bad so I bit the bullet. Well the actual ones are not the least bit comfortable so now I am stuck. Unless you have ears the size of a child, DON'T BUY THESE!

  • from Toronto, ON

Excellent Headphones

I've been using these headphones daily for 2 months, and they have performed flawlessly. I don't have a single complaint, they are well worth the price.

  • from Leduc, AB

Impressive headphones

This is my fist pair of bt wireless headphones, so having nothing to compare this unit with other wireless headphones. The distance range on these headphones really impressed me, I could use the headphones connected to my phone from the second floor and walk to the basement without any degragation. I was also able to pair with multiple devices using bluetooth with ease(phone,laptops,etc).Having a backup hard wire connection is a nice touch. They appear to be very well bult and not very heavy. As for isolating headphones I would say they are just ok, not great but not bad. Comfort is above average, but the ear cups are a little narrow, so people with above average ears may find these uncomfortable with longer use. My biggest complaint would be that these headphones are not as loud as they should be. I don't think they will work while in a noisy environment (i.e.airplane).

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