---
product_id: 48367807
title: "HD 4.40BT"
brand: "sennheiser"
price: "$371.96"
currency: USD
in_stock: null
reviews_count: 8
category: "Sennheiser"
url: https://www.desertcart.us/products/48367807-hd-4-40bt
store_origin: US
region: United States of America
---

# Foldable, lightweight over-ear design aptX Bluetooth 4.0 for Hi-Fi sound 25-hour Li-ion battery life HD 4.40BT

**Brand:** sennheiser
**Price:** $371.96
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Elevate your daily soundtrack with Sennheiser’s sleek, wireless powerhouse.

## Quick Answers

- **What is this?** HD 4.40BT by sennheiser
- **How much does it cost?** $371.96 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/48367807-hd-4-40bt)

## Best For

- sennheiser enthusiasts

## Why This Product

- Trusted sennheiser brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Day Listening Power:** Up to 25 hours of uninterrupted playback keeps your vibe going from commute to unwind.
- • **Effortless Connectivity:** NFC-enabled fast pairing and intuitive ear cup controls put seamless control at your fingertips.
- • **Sleek Minimalist Design:** Understated black finish that fits your professional style while delivering uncompromised sound.
- • **Comfort Meets Durability:** Soft, padded ear cups and a foldable headband crafted from premium materials for on-the-go resilience.
- • **True Hi-Fi Wireless Sound:** Experience rich, dynamic audio with aptX Bluetooth 4.0—no wires, no compromise.

## Overview

The Sennheiser HD 4.40 BT headphones combine Bluetooth 4.0 with aptX technology to deliver high-fidelity wireless sound. Featuring a foldable, lightweight over-ear design with soft padded ear cups, they offer up to 25 hours of battery life and NFC for quick device pairing. Integrated microphone and ear cup controls provide hands-free convenience, making these headphones a perfect blend of professional style, durability, and premium audio performance for everyday use.

## Description

Product Description Sennheiser HD 4.40 Wireless offers good quality wireless sound for every day listening on the move. The closed-back, around-ear headset features Bluetooth 4.0 and aptX compatibility to deliver true Hi-Fi sound with a satisfyingly dynamic bass. Its minimalistic design has been crafted from robust, good quality materials to meet the requirements of the street. Typical audio output ports include: 3.5mm headphone port, red and white RCA audio output ports and digital audio output (either optical or coaxial). In some instances an adapter or extra component will be needed to make the appropriate connection. For example to change a 3.5mm headphone plug to an RCA connection you would use a female 3.5mm to male RCA adapter. For example to change an analog connection (3.5mm headphone plug or red and white RCA plugs) to a digital connection (ie: optical) you would use a digital to analog decoder (like the OREI DA 34). Box Contains 4044155204711

Review: HD 4.40 BT - I bought the Sennheiser HD 4.40 because I decided an extra £50 for the noise cancelling HD 4.50 was a bit overkill. Turns out I was right. If you're mulling over the 4.40's vs the 4.50's get the 4.40's. Ive been using these for a couple of days now commuting on the Tube, watching movies at home and so on. Noise isn't a problem with these the soft ear cups already cut out pretty much all of the noise you need to cut out. They fit very nicely and are reasonably comfortable. In fact the more I break them in the better they're getting. The headband is a little hard, but if you've got thick hair like me thats not a problem. Though, bald guys, you might find the headband a little hard. It is padded and soft but noticeably firm...again this might change over time with use. As for sound quality. The sound quality is excellent as you would expect from Sennheiser but the tone varies according to what you pair these things with. Paired with Arch Linux using an AptX dongle to watch movies using Kodi, the sound profile is punchy, rich, warm and satisfying. Paired with Android (with AptX) the profile seemed a bit flatter (but not overly so) so you may need an EQ if you want to get a more vibrant experience. I use Pi Music player which has a built in EQ and with the tiniest amount of tweaking I got the sound profile just perfect. For comparison sake, if you know what the Bose QC35's sound like then these headphones will sound richer and warmer compared to the cold aggressive tone of Bose (I find Bose headphones to be a bit trebly). Compared to Beats, theres considerably less volume in the bass here, but the bass is still there, its just not blown out, it's absolutely spot on in my opinion. If you're used to something low end like a Kitsound headphone or maybe a Bludio headphone then you'll find more treble here. You'll also notice a more solid Bluetooth reception. The physical controls work perfectly and are in just the right place. The only minor quirk is when adjusting the volume you get a beep for each notch you adjust. Coming from my old headset this was weird but not annoying. Lastly, don't worry about the all plastic build. These are built like a tank. The materials are tough, flexible and pleasant to the touch. They clamp to your face but not too hard. The pressure is well balanced across the cans and the headband. The faux leather cups are soft and forgiving and large enough to get most ears into. If you're an elephant they won't fit. If you're generally considered to be of roughly human size, you'll be fine. I have reasonably large ears and these feel fine to me. Nice and snug. Overall: Rich sound, great build quality, solid reception, brilliant. Excellent value for money and a very solid contender against 'higher end' kit. If you're a Sennheiser fan. These won't disappoint. If you're not, they won't disappoint.
Review: A great sounding and fantastically priced no nonsense headset. - Bought with my own cash money. In a world where every headphone manufacturer and his dog is sticking noise cancelling on their wireless headphones it's refreshing to have a headphone that just offers the basics. This new line from Sennheiser is no exception to the bells and whistles approach as for a little more money you can pick up the HD4.50 which is essentially the same headset as the 4.40 but it adds ANC to the mix. So it's nice at least to have the choice of a 'basic' wireless headset for those who don't really need/want the extras. Now (digression alert!) - I'll admit - I have a love/hate relationship with ANC. I love the silence I get from my Bose QC35 as the ANC is second to none. Take them into the outside world however and it's pointless as the active mics on the outside of any ANC headset (which enable it to process the external ambient noise to counteract it) produce varying degrees of wind noise which negate the benefits of ANC - In my opinion/experience at least. YMMV of course. Now I still use my QC35 but indoors and as a wired headset (as the Bluetooth connection is shockingly unstable - see my review for more info). Mainly for watching TV etc and for reading in silence and the ANC is the best there is. Bar none. Other manufacturers offer slightly worse (i.e. Cheaper) levels of NC which have less external mics and I've found that some of these work pretty well for real world portable use. Beats Studio Wireless is one example. Whilst it's not cheaper (that's Beats for you) the NC is nowhere near as good as the QC35 but conversely it creates a better listening experience as there are hardly any external mics resulting in an exceptionally reduced wind noise factor. But again because of all the bells and whistles you're looking at a 300 quid shell out. So I digress - and it seems this has been a rather long winded way of saying that I've been through virtually every wireless NC headset out there and found 99.9 percent of them lacking so it's nice to have the option of a stripped down wireless headset sans bells and whistles! Phew - Digression over! OK back to it - the 4.40? Right - What Sennheiser have achieved with this headset is quite simply the best combination of great sound, great Bluetooth, great materials, great build quality that I've experienced in a wireless headset. And all of this in a moderately priced confection to boot. I say 'moderately priced' as some (i.e. My long suffering wife) quite rightly see a £130 headset as expensive but we all know that this can be an insane hobby for your wallet. And more expensive doesn't always mean 'better'. An example - I've spent £420 on a wireless pair before (Master & Dynamic MW60) and yet I prefer the HD4.40 at nearly £300 cheaper. But it's all subjective and everyone has their own taste so don't judge me too harshly! So build quality wise - it's plastic buuuuut it's Sennheiser plastic. Which believe me does mean something as they always do a fabulous job with materials and their build quality and QC is generally up there with the best. The 4.40 is no exception in this regard and because of its pared back offering it's also the lightest headset I've ever used and in my eyes this makes it ever more truly Wireless. Battery life is up there with the best and though it may not be the 40 hour behemoth of the Beats Solo 3, 25 hours ish is certainly at the top end of what's out there at the moment. And whilst I like the Solo 3 (also reviewed) I much prefer the build quality and sound signature of the 4.40. For one the plastic folding mechanism of the 4.40 inspires more confidence than the metal of the Beats. Strange I know but in my eyes true nonetheless. Sound wise - well It's a very Sennheiser sound and combines the best of the mid centric focus they have always been known for with the added elements of the new house sound evident in their more recent forays into the world of the modern Audiophile. So for that read an extra serving of low end oomph and a bit of extra sparkle up top from neutral. No sibilance at all and for Bluetooth the bass is tight and well formed. Soundstage is just average but that's to be expected for a wireless BT headset although the imaging is pretty good with good instrument placement. Its a sound signature that I really like (and I'm a neutral lover) and it works great when out and about as the extra oomph and sparkle really give it a lively dynamic sound that isn't drowned out by the sound of the outside world. So cons? Not many for me. Some may bemoan the lack of a case but I certainly wasn't expecting accessories at this price point. Some may bemoan the plastic and the lack of refinement and luxury offered by the B&W P7 Wireless (also reviewed)? But the HD4.40 is just shy of £200 cheaper so it's horses for courses. Besides I found the Bass a little overdone when using the P7 in wireless mode something which I haven't found in the 4.40 which is fantastic given the price. The ear cushions are small - about on par size-wise with the Momentum 2.0 (& Wireless) and whilst I have no idea why Sennheiser have such a strict penchant for tiny ear holes, given that I found those models incredibly uncomfortable, fortunately the pads on the 4.40 are thicker and softer and as a result I've not experienced these same levels of discomfort. So result! But I only use mine for commuting do can't comment on longer listening sessions as I didn't buy these for that purpose. So all in all the HD4.40 is a phenomenal headset with great sound, fantastic build quality, rock solid Bluetooth connection (zero drop outs so far) and all this at the same price point as some lesser creaky Sony models and 120 quid cheaper than the slightly less creaky Beats Solo 3. What's not to love? Hope some of this helps. Stew

## Features

- Bluetooth 4.0 wireless with aptX for true Hi-Fi sound
- NFC for fast pairing with compatible devices. Frequency response (microphone): 100 - 10, 000 Hz
- Integrated microphone for headset use
- Ear cup mounted call and track controls
- Foldable headband design for easy storage. Li-ion Polymer Battery

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MSZSJE9 |
| Age range (description) | Adult |
| Cable feature | Without Cable |
| Charging time | 25 Hours |
| Compatible devices | Smartphones |
| Connectivity technology | Bluetooth, wired cable included also |
| Control method | Touch |
| Control type | Intuitive ear cup mounted controls |
| Guaranteed software updates until | unknown |
| Included components | HD 4.40 BT Headset, carry pouch, charging cable, connecting cable, quick start guide |
| Item model number | HD 4.40 BT |
| Item weight | 450 Grams |
| Manufacturer | Sennheiser |
| Material | 4044155204711 |
| Number of items | 4 |
| Package type | soft/cushioned pouch |
| Product Dimensions | 17.98 x 10.01 x 26.04 cm; 450 g |
| Recommended uses for product | Travel, Exercising, Music, Gaming |
| Specific uses for product | Music, Travel |
| Style | HD 4.40 BT |
| Unit count | 1.0 Count |
| Water resistance level | Not Water Resistant |
| Wireless communication technology | Bluetooth |

## Product Details

- **Brand:** Sennheiser
- **Colour:** Black
- **Ear placement:** Over Ear
- **Form factor:** Around Ear
- **Frequency response:** 22000 Hz
- **Headphone jack:** 3.5 mm Jack
- **Impedance:** 18 Ohms
- **Model name:** HD 4.40 BT Wireless
- **Noise control:** Active Noise Cancellation
- **Sensitivity:** 113 dB

## Images

![HD 4.40BT - Image 1](https://m.media-amazon.com/images/I/51kqVzF8lzL.jpg)
![HD 4.40BT - Image 2](https://m.media-amazon.com/images/I/61B6WqLtPES.jpg)
![HD 4.40BT - Image 3](https://m.media-amazon.com/images/I/61CZmtzSPOS.jpg)
![HD 4.40BT - Image 4](https://m.media-amazon.com/images/I/61qzMcljILS.jpg)

## Questions & Answers

**Q: Has anyone tried jogging or going to the gym with these? What was your experience?**
A: I use them sometimes at the gym and they can slide off a bit but not a lot my boyfriend uses then for running and never reported any issues

**Q: Hi can anyone tell me if these headphones can be wirelessly to a smart tv**
A: Yes. I use them with my Panasonic and they are great. I pair them with Amazon tv too, very good sound.

**Q: Do these come with a protective case?**
A: They come with a little sennheiser cloth bag (similar to the material used with those clothes for cleaning glasses lens). It will protect them from scratches if you throw it into your bag at most.

**Q: If I turn the volume up the people besides me will be hearing or annoying them?**
A: Not at all. I can play maximum volume with heavy base and people sitting right next to me still can't hear it. They have a great seal

## Customer Reviews

### ⭐⭐⭐⭐⭐ HD 4.40 BT
*by C***X on 7 February 2018*

I bought the Sennheiser HD 4.40 because I decided an extra £50 for the noise cancelling HD 4.50 was a bit overkill. Turns out I was right. If you're mulling over the 4.40's vs the 4.50's get the 4.40's. Ive been using these for a couple of days now commuting on the Tube, watching movies at home and so on. Noise isn't a problem with these the soft ear cups already cut out pretty much all of the noise you need to cut out. They fit very nicely and are reasonably comfortable. In fact the more I break them in the better they're getting. The headband is a little hard, but if you've got thick hair like me thats not a problem. Though, bald guys, you might find the headband a little hard. It is padded and soft but noticeably firm...again this might change over time with use. As for sound quality. The sound quality is excellent as you would expect from Sennheiser but the tone varies according to what you pair these things with. Paired with Arch Linux using an AptX dongle to watch movies using Kodi, the sound profile is punchy, rich, warm and satisfying. Paired with Android (with AptX) the profile seemed a bit flatter (but not overly so) so you may need an EQ if you want to get a more vibrant experience. I use Pi Music player which has a built in EQ and with the tiniest amount of tweaking I got the sound profile just perfect. For comparison sake, if you know what the Bose QC35's sound like then these headphones will sound richer and warmer compared to the cold aggressive tone of Bose (I find Bose headphones to be a bit trebly). Compared to Beats, theres considerably less volume in the bass here, but the bass is still there, its just not blown out, it's absolutely spot on in my opinion. If you're used to something low end like a Kitsound headphone or maybe a Bludio headphone then you'll find more treble here. You'll also notice a more solid Bluetooth reception. The physical controls work perfectly and are in just the right place. The only minor quirk is when adjusting the volume you get a beep for each notch you adjust. Coming from my old headset this was weird but not annoying. Lastly, don't worry about the all plastic build. These are built like a tank. The materials are tough, flexible and pleasant to the touch. They clamp to your face but not too hard. The pressure is well balanced across the cans and the headband. The faux leather cups are soft and forgiving and large enough to get most ears into. If you're an elephant they won't fit. If you're generally considered to be of roughly human size, you'll be fine. I have reasonably large ears and these feel fine to me. Nice and snug. Overall: Rich sound, great build quality, solid reception, brilliant. Excellent value for money and a very solid contender against 'higher end' kit. If you're a Sennheiser fan. These won't disappoint. If you're not, they won't disappoint.

### ⭐⭐⭐⭐⭐ A great sounding and fantastically priced no nonsense headset.
*by S***O on 13 February 2017*

Bought with my own cash money. In a world where every headphone manufacturer and his dog is sticking noise cancelling on their wireless headphones it's refreshing to have a headphone that just offers the basics. This new line from Sennheiser is no exception to the bells and whistles approach as for a little more money you can pick up the HD4.50 which is essentially the same headset as the 4.40 but it adds ANC to the mix. So it's nice at least to have the choice of a 'basic' wireless headset for those who don't really need/want the extras. Now (digression alert!) - I'll admit - I have a love/hate relationship with ANC. I love the silence I get from my Bose QC35 as the ANC is second to none. Take them into the outside world however and it's pointless as the active mics on the outside of any ANC headset (which enable it to process the external ambient noise to counteract it) produce varying degrees of wind noise which negate the benefits of ANC - In my opinion/experience at least. YMMV of course. Now I still use my QC35 but indoors and as a wired headset (as the Bluetooth connection is shockingly unstable - see my review for more info). Mainly for watching TV etc and for reading in silence and the ANC is the best there is. Bar none. Other manufacturers offer slightly worse (i.e. Cheaper) levels of NC which have less external mics and I've found that some of these work pretty well for real world portable use. Beats Studio Wireless is one example. Whilst it's not cheaper (that's Beats for you) the NC is nowhere near as good as the QC35 but conversely it creates a better listening experience as there are hardly any external mics resulting in an exceptionally reduced wind noise factor. But again because of all the bells and whistles you're looking at a 300 quid shell out. So I digress - and it seems this has been a rather long winded way of saying that I've been through virtually every wireless NC headset out there and found 99.9 percent of them lacking so it's nice to have the option of a stripped down wireless headset sans bells and whistles! Phew - Digression over! OK back to it - the 4.40? Right - What Sennheiser have achieved with this headset is quite simply the best combination of great sound, great Bluetooth, great materials, great build quality that I've experienced in a wireless headset. And all of this in a moderately priced confection to boot. I say 'moderately priced' as some (i.e. My long suffering wife) quite rightly see a £130 headset as expensive but we all know that this can be an insane hobby for your wallet. And more expensive doesn't always mean 'better'. An example - I've spent £420 on a wireless pair before (Master & Dynamic MW60) and yet I prefer the HD4.40 at nearly £300 cheaper. But it's all subjective and everyone has their own taste so don't judge me too harshly! So build quality wise - it's plastic buuuuut it's Sennheiser plastic. Which believe me does mean something as they always do a fabulous job with materials and their build quality and QC is generally up there with the best. The 4.40 is no exception in this regard and because of its pared back offering it's also the lightest headset I've ever used and in my eyes this makes it ever more truly Wireless. Battery life is up there with the best and though it may not be the 40 hour behemoth of the Beats Solo 3, 25 hours ish is certainly at the top end of what's out there at the moment. And whilst I like the Solo 3 (also reviewed) I much prefer the build quality and sound signature of the 4.40. For one the plastic folding mechanism of the 4.40 inspires more confidence than the metal of the Beats. Strange I know but in my eyes true nonetheless. Sound wise - well It's a very Sennheiser sound and combines the best of the mid centric focus they have always been known for with the added elements of the new house sound evident in their more recent forays into the world of the modern Audiophile. So for that read an extra serving of low end oomph and a bit of extra sparkle up top from neutral. No sibilance at all and for Bluetooth the bass is tight and well formed. Soundstage is just average but that's to be expected for a wireless BT headset although the imaging is pretty good with good instrument placement. Its a sound signature that I really like (and I'm a neutral lover) and it works great when out and about as the extra oomph and sparkle really give it a lively dynamic sound that isn't drowned out by the sound of the outside world. So cons? Not many for me. Some may bemoan the lack of a case but I certainly wasn't expecting accessories at this price point. Some may bemoan the plastic and the lack of refinement and luxury offered by the B&W P7 Wireless (also reviewed)? But the HD4.40 is just shy of £200 cheaper so it's horses for courses. Besides I found the Bass a little overdone when using the P7 in wireless mode something which I haven't found in the 4.40 which is fantastic given the price. The ear cushions are small - about on par size-wise with the Momentum 2.0 (& Wireless) and whilst I have no idea why Sennheiser have such a strict penchant for tiny ear holes, given that I found those models incredibly uncomfortable, fortunately the pads on the 4.40 are thicker and softer and as a result I've not experienced these same levels of discomfort. So result! But I only use mine for commuting do can't comment on longer listening sessions as I didn't buy these for that purpose. So all in all the HD4.40 is a phenomenal headset with great sound, fantastic build quality, rock solid Bluetooth connection (zero drop outs so far) and all this at the same price point as some lesser creaky Sony models and 120 quid cheaper than the slightly less creaky Beats Solo 3. What's not to love? Hope some of this helps. Stew

### ⭐⭐⭐⭐ Good pair of headphones, still a bit pricy though?
*by U***. on 30 March 2020*

I purchased this for just under £100 which is still a bit pricey for what it is but I suppose your also paying for the brand name. It is a brand that I always have loved though. I have always preferred Sennheiser's take on audio on a lot of their headphones. Unfortunately this is not one of them. The sound quality is still great, I prefer audio to be on the neutral side so I can hear the instruments, not for them to be drowned out by muddy base. But I have found recently that a lot of their low end headphones are way too neutral to the point they almost sound tinny. This is not far off but still has hints of that Sennheiser signature sound. They make most of their money from the high end, I understand but a lot of manufacturers are making some really awesome sounding headphones on the lower end these days and I can't but help think that they should be doing better. The headphone is comfortable to wear for long periods of time, thanks to the massive over ear cushions. The underside of the headband, could use much better material and cushioning. Instead, they have used rougher material which I guess stops the headband from slipping off your head but tends to pick up dirt and catch hair overtime. The build quality is brilliant though, it does feel like a high end pair of headphones. Thankfully, it folds. This should be a standard across all over-ear headphones regardless of price point. If you buy this at the price I did, I do not think it is worth the cost. If it ever drops below £70, you should consider this.

## Frequently Bought Together

- Sennheiser HD 4.40 BT, Over-Ear Wireless Bluetooth Headphones - Black
- Sennheiser MOMENTUM 4 Wireless Special Edition Headphones, Bluetooth for Crystal-Clear Calls w/Adaptive Noise Cancellation, 60h Battery Life, Customizable Sound, Black/Copper

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-28*