---
product_id: 729254812
title: "Sennheiser HD 450SE Wireless Bluetooth 5.0 Headphones with Built-in Alexa - Active Noise Cancellation, 30 Hours Battery Life, USB-C Fast Charging, Foldable - Black"
brand: "sennheiser"
price: "€ 0.60"
currency: EUR
in_stock: false
reviews_count: 7
url: https://www.desertcart.gr/products/729254812-sennheiser-hd-450se-wireless-bluetooth-5-0-headphones-with-built
store_origin: GR
region: Greece
---

# Bluetooth 5.0 with AAC & AptX codecs 30-hour battery life with USB-C fast charge Built-in Alexa & voice assistant control Sennheiser HD 450SE Wireless Bluetooth 5.0 Headphones with Built-in Alexa - Active Noise Cancellation, 30 Hours Battery Life, USB-C Fast Charging, Foldable - Black

**Brand:** sennheiser
**Price:** € 0.60
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Elevate your sound, silence the noise, and stay connected like a pro.

## Quick Answers

- **What is this?** Sennheiser HD 450SE Wireless Bluetooth 5.0 Headphones with Built-in Alexa - Active Noise Cancellation, 30 Hours Battery Life, USB-C Fast Charging, Foldable - Black by sennheiser
- **How much does it cost?** € 0.60 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/729254812-sennheiser-hd-450se-wireless-bluetooth-5-0-headphones-with-built)

## 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 Power:** Enjoy up to 30 hours of uninterrupted playback and recharge quickly with USB-C fast charging—never miss a beat.
- • **Noise-Free Focus:** Active Noise Cancellation blocks distractions so you can dive deep into work, calls, or your favorite playlists.
- • **Smart Voice Control:** Instant access to Alexa, Siri, or Google Assistant via a dedicated button—your personal assistant, hands-free.
- • **Seamless Connectivity:** Bluetooth 5.0 ensures lag-free, crystal-clear audio with AAC and AptX Low Latency support for immersive streaming.
- • **Custom Sound Experience:** Fine-tune your audio with the Sennheiser app’s equalizer and podcast mode for tailored listening perfection.

## Overview

The Sennheiser HD 450SE Wireless Headphones combine advanced Bluetooth 5.0 technology with premium active noise cancellation, delivering up to 30 hours of battery life and fast USB-C charging. Featuring built-in Alexa and support for multiple voice assistants, these foldable over-ear headphones offer customizable sound via the Sennheiser app, making them the ultimate companion for professionals seeking immersive, uninterrupted audio on the go.

## Description

Bluetooth 5. Technology 0 for effortless reliable connectivity including AAC low latency codec and AptX Support for active noise cancellation for uninterrupted listening enjoyment 30-hour battery life with USB-C fast charging Intuitive controls included Virtual Assistant button for Alexa, Siri and Google Assistant Sennheiser app support that provides equalizer, firpodcast mode and msupdates Ware

Review: Excellent headphones - Great sound. Really comfortable too.
Review: Not durable and poor sound quality - Not at all robust - scratches very easily. Sound quality not that great given the price. Very disappointing.

## Features

- Bluetooth 5. 0 technology for effortless reliable connectivity including AAC and AptX Low Latency codec support
- Active noise reduction for uninterrupted listening pleasure
- Intuitive controls including Virtual Assistant button for Alexa, Siri and Google Assistant
- Sennheiser App support that provides equalizer, podcast mode and firmware updates
- Included Components: HD 450BT Wireless Headphones

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09325WTV5 |
| Age Range Description | Adult |
| Antenna Location | Versatile, suitable for various uses |
| Audio Driver Type | Dynamic Driver |
| Battery Average Life | 30 Hours |
| Battery Charge Time | 30 Hours |
| Best Sellers Rank | 4,980 in Headphones & Earphones |
| Bluetooth Range | 10 Metres |
| Bluetooth Version | 5.0 |
| Box Contents | Cable, Ear Cushions, Protective Case, User Manual |
| Brand | Sennheiser |
| Brand Name | Sennheiser |
| Cable Features | Without Cable |
| Carrying Case Battery Charging Time | 30 Hours |
| Carrying Case Color | Black |
| Carrying Case Material | fabric |
| Colour | Black/White |
| Compatible Devices | Smartphones, Laptops, Tablets, Smart Speakers, Desktops |
| Control Method | Voice |
| Control Type | Alexa |
| Controller Type | Alexa |
| Customer Package Type | [UNDETERMINED] |
| Customer Reviews | 4.0 out of 5 stars 2,546 Reviews |
| Ear placement | Over Ear |
| Earpiece Shape | Rounded cup |
| Enclosure Material | Plastic, Metal, or Reinforced Material |
| Form factor | Over Ear |
| Frequency Range | 18 - 22,000 Hz |
| Frequency Response | 6000 Hz |
| Frequency response | 6000 Hz |
| Headphone Form Factor | Over Ear |
| Headphone Jack | USB |
| Headphones Ear Placement | Over Ear |
| Is Autographed | No |
| Is Electric | Yes |
| Item Type Name | portable audio or video systems |
| Item Weight | 0.52 Kilograms |
| Manufacturer | Sennheiser |
| Model Name | HD 450SE |
| Model Number | HD 450SE Black |
| Network Connectivity Technology | Wireless |
| Noise Control | Active Noise Cancellation |
| Noise control | Active Noise Cancellation |
| Number of Items | 1 |
| Product Features | Amazon Alexa |
| Series Number | 450 |
| Specific Uses For Product | Gaming |
| Style Name | Special Edition |
| Theme | Video Game |
| UPC | 615104372283 |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | Bluetooth |

## Product Details

- **Brand:** Sennheiser
- **Colour:** Black/White
- **Connectivity technology:** Wireless
- **Ear placement:** Over Ear
- **Form factor:** Over Ear
- **Frequency response:** 6000 Hz
- **Headphone jack:** USB
- **Model name:** HD 450SE
- **Noise control:** Active Noise Cancellation
- **Wireless communication technology:** Bluetooth

## Images

![Sennheiser HD 450SE Wireless Bluetooth 5.0 Headphones with Built-in Alexa - Active Noise Cancellation, 30 Hours Battery Life, USB-C Fast Charging, Foldable - Black - Image 1](https://m.media-amazon.com/images/I/61Wiw8zIwvL.jpg)
![Sennheiser HD 450SE Wireless Bluetooth 5.0 Headphones with Built-in Alexa - Active Noise Cancellation, 30 Hours Battery Life, USB-C Fast Charging, Foldable - Black - Image 2](https://m.media-amazon.com/images/I/71gn4UdPy5L.jpg)
![Sennheiser HD 450SE Wireless Bluetooth 5.0 Headphones with Built-in Alexa - Active Noise Cancellation, 30 Hours Battery Life, USB-C Fast Charging, Foldable - Black - Image 3](https://m.media-amazon.com/images/I/716dU+dVaxL.jpg)
![Sennheiser HD 450SE Wireless Bluetooth 5.0 Headphones with Built-in Alexa - Active Noise Cancellation, 30 Hours Battery Life, USB-C Fast Charging, Foldable - Black - Image 4](https://m.media-amazon.com/images/I/71ae7ZXQVdL.jpg)
![Sennheiser HD 450SE Wireless Bluetooth 5.0 Headphones with Built-in Alexa - Active Noise Cancellation, 30 Hours Battery Life, USB-C Fast Charging, Foldable - Black - Image 5](https://m.media-amazon.com/images/I/61xtto8AvRL.jpg)

## Available Options

This product comes in different **Color, Style** options.

## 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

### ⭐⭐⭐⭐⭐ Excellent headphones
*by A***T on 14 December 2025*

Great sound. Really comfortable too.

### ⭐ Not durable and poor sound quality
*by S***N on 20 November 2025*

Not at all robust - scratches very easily. Sound quality not that great given the price. Very disappointing.

### ⭐⭐⭐⭐⭐ Perfect
*by A***D on 4 March 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

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-07-23*