---
product_id: 350168446
title: "Sennheiser HD 450SE Black Bluetooth 5.0 Wireless Headphone with Alexa Built-in - Active Noise Cancellation, 30-Hour Battery Life, USB-C Fast Charging, Foldable - Black"
brand: "sennheiser"
price: "HK$1808"
currency: HKD
in_stock: true
reviews_count: 7
category: "Sennheiser"
url: https://www.desertcart.hk/products/350168446-sennheiser-hd-450se-black-bluetooth-5-0-wireless-headphone-alexa
store_origin: HK
region: Hong Kong
---

# Bluetooth 5.0 with AAC & AptX codecs Active Noise Cancellation 30-hour battery life Sennheiser HD 450SE Black Bluetooth 5.0 Wireless Headphone with Alexa Built-in - Active Noise Cancellation, 30-Hour Battery Life, USB-C Fast Charging, Foldable - Black

**Brand:** sennheiser
**Price:** HK$1808
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your workday soundtrack with smart, powerful sound that keeps pace with your hustle.

## Quick Answers

- **What is this?** Sennheiser HD 450SE Black Bluetooth 5.0 Wireless Headphone with Alexa Built-in - Active Noise Cancellation, 30-Hour Battery Life, USB-C Fast Charging, Foldable - Black by sennheiser
- **How much does it cost?** HK$1808 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/350168446-sennheiser-hd-450se-black-bluetooth-5-0-wireless-headphone-alexa)

## 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

- • **Immerse in Pure Sound:** Active Noise Cancellation blocks out distractions so you can focus on what matters—whether it’s a critical call or your favorite podcast.
- • **Tailored Audio Experience:** Customize your sound with the Sennheiser Smart Control App featuring an equalizer and Podcast Mode—because your audio should work as hard as you do.
- • **Voice-Activated Productivity:** Built-in Alexa and support for Siri and Google Assistant put smart controls at your fingertips—stay hands-free and in control wherever you work.
- • **Seamless, Lag-Free Connectivity:** Bluetooth 5.0 with AAC and AptX Low Latency codecs ensures crystal-clear, high-fidelity sound with zero annoying delays.
- • **Endurance that Outlasts Your Day:** Enjoy uninterrupted audio with a massive 30-hour battery life and USB-C fast charging to keep you powered through back-to-back meetings and commutes.

## Overview

The Sennheiser HD 450SE Black wireless headphones combine advanced Bluetooth 5.0 connectivity, effective active noise cancellation, and a robust 30-hour battery life with USB-C fast charging. Designed for professionals on the go, they feature Alexa built-in and customizable sound profiles via the Sennheiser app, delivering premium audio quality and hands-free convenience in a sleek, foldable design.

## Description

Alexa, that sounds incredible Experience great wireless sound and stay effortlessly connected using desertcart Alexa with the Sennheiser HD 450SE. With Buetooth 5.0, active noise cancellation and high-quality wireless codec support including AAC, AptX and AptX Low Latency the HD 450SE deliver superior sound qualilty with deep dynamic bass. Advanced features include Alexa interaction, customization via the Sennheiser Smart Control App, a special podcast mode, and 30-hour battery life to deliver exceptional performance and versatility for audio lovers.

Review: Comfortable, Quality Sound, Durable, Good ANC, Bluetooth5+Audio Cable, Smart Control app, Alexa - SE - (UPDATED) 12/17/22: Review of the Sennheiser HD 450BT (Special Edition) COMFORT The only thing I was worried about was comfort as some of the reviewers complained about the fit being too tight and or runs hot, which I found not the case for me. SOUND The sound was well balanced (lows, mids, highs) out of the box, even though the built-in Smart Control app controls the equalizer, which has presets for genres and is customizable to some degree. The bass (lows) are actually adjustable slightly in the Smart Control equalizer and iPhone settings, so the bass (lows) are better than expected. BUILD QUALITY The build quality thus far is good and better than expected. ACTIVE NOISE CANCELLATION The ANC (active noise cancellation) is average at best, but does appear to reduce the outside noise by approximately 35%. BLUETOOTH WIRELESS and WIRED CONNECTIVITY The Bluetooth codecs will be more than enough to please the casual audio listener and on any device. Since these headphones also have wired cable connectivity (better than Bluetooth, playing lossless uncompressed audio), these headphones are all that is needed. The one odd, whether you take it as good or bad, is the audio cable connector is keyed. This provides a locking type of connection so that the cable does not wiggle or loosen easily. Connecting the cable takes getting used to, but works well. SMART CONTROL APP The Smart Control app has limited functionality. It is too bad you can't control the functions in the app that the physical buttons provide. desertcart ALEXA The SE (special edition) version includes desertcart Alexa, if that is important to you, but other than this, both models are identical. I didn't need Alex, but the SE was quite a bit cheaper during one of the Black Friday or Cyber Monday deals for $75.00. CHARGING I do not believe these are considered fast charging as it took 2 or more hours to fully charge. RECOMMENDATION I would recommend these headphones at any price range whether at retail or reduced, because of the sound and build quality as well as the other numerous features it offers.
Review: For $130 USD in 2023, you cannot beat these, BUT -- - I don't want to ding the star rating for these because they are AWESOME for their price point, but these are a few NEED TO KNOWS: 1. They have small standard ear cups. I have small-average ears, and a big head for hats/headphones. I think these are very comfortable, but that's because I don't have big ears! You would definitely want to upgrade the ear padding to a larger size if you have large ears. 2. The "active noise cancelling" is FAR from perfect. But it's good for the price point! If the ear pads fit (again, sizing important from part 1), then I'd say it cancels enough sound to be totally worth it! I overnight ordered these for surprise roof construction where I work. That being said, if this is the most important feature for you, and you want truly great ANC, then spend a little more for a better pair. Again, I think for this price I am plenty happy. 3. Head size/head band comfort - I have a big head, need large/custom hats, and I find these to be perfectly comfortable, and don't put too much pressure on my head. The padding is doing its job! So far after two full days of wear, I haven't had any pain and the weight is great for long days of work. I also like that the ear cups tilt in both directions - human heads are not flat! 4. Sound quality - I am very sound sensitive, enough to have dipped my toes in audiophile-learning to understand what sounds I do and don't like, and I think the other reviews that claim they are pretty "flat" is correct! I often have to turn down "high" sounds on headphones, and these were fairly perfect out of box for me. If you're a big bass fan, you'll need to fuss with the settings, but I haven't looked into it specifically. I really like these! I think it's smart to get a hard protective case for them, but it's awesome that they fold up - they fit in my work purse when folded!

## Features

- Bluetooth 5. 0 technology for effortlessly reliable connectivity including AAC and AptX Low Latency codec support
- Active noise cancellation for uninterrupted listening pleasure
- 30-hour battery life with USB-C fast charging
- Intuitive controls including Virtual Assistant button for Alexa, Siri and Google Assistant
- Sennheiser App support providing an equalizer, Podcast Mode and Firmware updates

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09325WTV5 |
| Age Range (Description) | Adult |
| Audio Driver Type | Dynamic Driver |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Battery Life | 30 Hours |
| Best Sellers Rank | #65,776 in Electronics ( See Top 100 in Electronics ) #93 in Recording Headphone Audio Monitors #1,511 in Over-Ear Headphones |
| Bluetooth Range | 10 Meters |
| Bluetooth Version | 5.0 |
| Cable Feature | Without Cable |
| Carrying Case Color | Black |
| Carrying Case Material | fabric |
| Charging Time | 30 Hours |
| Compatible Devices | Smartphones, Laptops, Tablets, Smart Speakers, Desktops |
| Connectivity Technology | Bluetooth 5.0, HDMI |
| Control Method | App |
| Control Type | Alexa |
| Controller Type | Alexa |
| Customer Package Type | FFP |
| Customer Reviews | 3.8 3.8 out of 5 stars (5,072) |
| Date First Available | April 20, 2021 |
| Earpiece Shape | Rounded cup |
| Frequency Response | 6000 Hz |
| Generation | 4 |
| Hardware Interface | Bluetooth |
| Headphones Jack | USB |
| Included Components | HD 450SE Wireless headphones, USB-C charging cable, Audio cable, Carrying pouch, Quick guide, Safety guide |
| Input Device Interface | Bluetooth, USB-C |
| Item Weight | 1.14 pounds |
| Item model number | HD 450SE Black |
| Manufacturer | Sennheiser |
| Material | Plastic, Metal, or Reinforced Material |
| Model Name | HD 450SE |
| Noise Control | Active Noise Cancellation |
| Noise Control Features | active_noise_cancellation |
| Number of Items | 1 |
| Product Dimensions | 7.68 x 3.94 x 9.13 inches |
| Recommended Uses For Product | Audio Monitoring, Calling |
| Sensitivity | 94 dB |
| Series Number | 450 |
| Special Feature | Foldable, Microphone Included, Noise Cancellation |
| Specific Uses For Product | Audio, Music, Phone calls |
| Style | Special Edition |
| Supports Bluetooth Technology | Yes |
| UPC | 615104372283 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Not Water Resistant |
| Wireless Communication Technology | Bluetooth |

## Product Details

- **Brand:** Sennheiser
- **Color:** Black
- **Ear Placement:** Over Ear
- **Form Factor:** Over Ear
- **Impedance:** 60 Ohms

## Images

![Sennheiser HD 450SE Black Bluetooth 5.0 Wireless Headphone with Alexa Built-in - Active Noise Cancellation, 30-Hour Battery Life, USB-C Fast Charging, Foldable - Black - Image 1](https://m.media-amazon.com/images/I/61Wiw8zIwvL.jpg)

## Questions & Answers

**Q: Where can I get another aux cable?**
A: On Amazon.
 I recommend the marshall  aux
 it has a great microphone and it has a coil which makes it very comfortable to be walking around without it getting caught on stuff or just not feeling like u have too much cable when working on a laptop.

**Q: Is this recommended to use for online conferencing? is mic quality good?**
A: Yes. I have used it for about 10 days for teams/zoom meetings, the mic and speaker work very well for me.

**Q: Do they have transparent mode like more expensive models? And if not, is it possible to be reasonably aware of the surroundings when using them?**
A: Answer to @ShakyJake, you mentioned that you are unable to turn it off the "Transparency Mode" or the pass-through sounds that are made ambiently around you, like voices, crinkling paper, and typing. This is not the same as ANC(Active Noice Cancellation) which removes only the ambient hum of the room like a fan, refrigerator, or airplane.

This particular headset actually has two BlueTooth Connections or "drivers" on windows and mac. 
"Headphones (LE-HD 450BT Stereo)" & "Headset (HD 450BT Hands-Free AG Audio)"
Mobile devices seem to auto-switch between these depending on if they are utilizing the mic in the Headset or not.

Headphones (LE-HD 450BT Stereo): Does not utilize Transparency Mode, however ANC can be toggled. (Set this as "Default" if you do not want to here the Transparency mode)
Headset (HD 450BT Hands-Free AG Audio): Seems to default Transparency Mode ON, and ANC can also be toggled when this is active as well. (If you make a lot of calls and utilize the mic setting this to "Default" may be more useful) If you use the Assistant button, this will automatically switch to this driver, but will revert if you have the headphones selected as "Default".

**Extra Notes**
If you have a 5.0 BlueTooth (internal or as an adapter) for your computer both of these are able to connect and you can toggle between these in your sound settings. Most modern mobile devices as of July 2016+ have this installed but you may use the AIDA64 app on the Google Play store to see if it's in your device.
Apple Users: iPhone 8, iPhone 8 Plus, iPhone X, HomePod, and the 2018 MacBook Pro with Touch Bar all (and newer devices) utilize the 5.0 or newer BlueTooth.
I do not know what happens if you have an older version of BlueTooth, however, I speculate that switching between the two drivers may be clunky, and slower than it already is. However they will still connect, you may just run into issues connecting other devices simultaneously like a mouse and keyboard.
The S 450BT WILL usually prioritize headphone mode, however, I hope this helps if you were confused.
If you use the Headphone Jack it will put the headphones in Flight Mode and deactivate all BlueTooth Connections.

Hope this helps!

**Q: Do the headphones come with a charger or do I need to buy one separately?**
A: The headphones come with usb cable for charging, but no adaptor.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Comfortable, Quality Sound, Durable, Good ANC, Bluetooth5+Audio Cable, Smart Control app, Alexa - SE
*by A***. on December 13, 2022*

(UPDATED) 12/17/22: Review of the Sennheiser HD 450BT (Special Edition) COMFORT The only thing I was worried about was comfort as some of the reviewers complained about the fit being too tight and or runs hot, which I found not the case for me. SOUND The sound was well balanced (lows, mids, highs) out of the box, even though the built-in Smart Control app controls the equalizer, which has presets for genres and is customizable to some degree. The bass (lows) are actually adjustable slightly in the Smart Control equalizer and iPhone settings, so the bass (lows) are better than expected. BUILD QUALITY The build quality thus far is good and better than expected. ACTIVE NOISE CANCELLATION The ANC (active noise cancellation) is average at best, but does appear to reduce the outside noise by approximately 35%. BLUETOOTH WIRELESS and WIRED CONNECTIVITY The Bluetooth codecs will be more than enough to please the casual audio listener and on any device. Since these headphones also have wired cable connectivity (better than Bluetooth, playing lossless uncompressed audio), these headphones are all that is needed. The one odd, whether you take it as good or bad, is the audio cable connector is keyed. This provides a locking type of connection so that the cable does not wiggle or loosen easily. Connecting the cable takes getting used to, but works well. SMART CONTROL APP The Smart Control app has limited functionality. It is too bad you can't control the functions in the app that the physical buttons provide. AMAZON ALEXA The SE (special edition) version includes Amazon Alexa, if that is important to you, but other than this, both models are identical. I didn't need Alex, but the SE was quite a bit cheaper during one of the Black Friday or Cyber Monday deals for $75.00. CHARGING I do not believe these are considered fast charging as it took 2 or more hours to fully charge. RECOMMENDATION I would recommend these headphones at any price range whether at retail or reduced, because of the sound and build quality as well as the other numerous features it offers.

### ⭐⭐⭐⭐⭐ For $130 USD in 2023, you cannot beat these, BUT --
*by A***R on October 6, 2023*

I don't want to ding the star rating for these because they are AWESOME for their price point, but these are a few NEED TO KNOWS: 1. They have small standard ear cups. I have small-average ears, and a big head for hats/headphones. I think these are very comfortable, but that's because I don't have big ears! You would definitely want to upgrade the ear padding to a larger size if you have large ears. 2. The "active noise cancelling" is FAR from perfect. But it's good for the price point! If the ear pads fit (again, sizing important from part 1), then I'd say it cancels enough sound to be totally worth it! I overnight ordered these for surprise roof construction where I work. That being said, if this is the most important feature for you, and you want truly great ANC, then spend a little more for a better pair. Again, I think for this price I am plenty happy. 3. Head size/head band comfort - I have a big head, need large/custom hats, and I find these to be perfectly comfortable, and don't put too much pressure on my head. The padding is doing its job! So far after two full days of wear, I haven't had any pain and the weight is great for long days of work. I also like that the ear cups tilt in both directions - human heads are not flat! 4. Sound quality - I am very sound sensitive, enough to have dipped my toes in audiophile-learning to understand what sounds I do and don't like, and I think the other reviews that claim they are pretty "flat" is correct! I often have to turn down "high" sounds on headphones, and these were fairly perfect out of box for me. If you're a big bass fan, you'll need to fuss with the settings, but I haven't looked into it specifically. I really like these! I think it's smart to get a hard protective case for them, but it's awesome that they fold up - they fit in my work purse when folded!

### ⭐⭐⭐⭐⭐ Review
*by A***D on March 4, 2024*

The Headphones is Almost perfect, Great quality & Sound , with the Application you can adjust the sound as you prefer. You can close the Active noise cancellation as well with the buttons . The only downside is that it will warm up your ears. The Bass is decent but not boomy.

## Frequently Bought Together

- Sennheiser Consumer Audio HD 450SE Black Bluetooth 5.0 Wireless Headphone with Alexa Built-in - Active Noise Cancellation, 30-Hour Battery Life, USB-C Fast Charging, Foldable - Black
- Headphone Case Compatible with Sennheiser Consumer Audio HD 400S / 450BT / 350BT / 450SE Around Ear Headphone, Case Only
- NewFantasia Replacement Audio Upgrade Cable for Sennheiser HD4.40, HD 4.40 BT, HD4.50, HD 4.50 BTNC, HD4.30i, HD4.30G Headphones 3meters/9.9feet

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-28*