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Shipping
4.7/5
Packaging
4.8/5
Overall performance
4.3/5
Appearance
4.8/5
Reviewed 5/27/26, United States.
These headphones would work for two days and then stop working for two days. When they weren't working, it was impossible to connect them to any devices. The product had a lot of issues, including getting stuck in pairing mode and being impossible to reset, which was incredibly frustrating. I bought them in "Good" condition but am returning them for an "Excellent" condition pair to see if that makes a difference. Based on my experience, I advise staying away from the "Good" condition option.
Sennheiser HD 450BT Noise cancelling Headphone Bluetooth with microphone - Black
Sennheiser HD 450BT Noise cancelling Headphone Bluetooth with microphone - Black
Condition
Good
Purchased
5/10/26
Reviewed 12/29/25, United States.
Love the headphones a lot! Sound quality is great and they're very comfortable. I wish the carrying case was a hardcover but outside of that, no complaints!
Sennheiser HD 450BT Noise cancelling Headphone Bluetooth with microphone - Black
Sennheiser HD 450BT Noise cancelling Headphone Bluetooth with microphone - Black
Condition
Good
Purchased
12/15/25
Reviewed 9/4/24, United States.
Sound quality and noise cancelling far exceeded my expectations at this price point. They barely fit over my ears which is okay, at least they aren't crushing my ears. The microphone works decently. Battery life on them is great, I can get around 20 hours from them at my normal volume levels. However, the reporting of battery % is awful. It stays at 100% for what seems like hours then drops down to 60%. It originally would say, "low battery please charge" when it got low enough, now I just get "Power off" and they just poof. So instead of charging them when needed I am plugging them in every night so they don't die with no notice, last nights power off was reported at 60% since I had just checked the battery before they died, 10% when powered back on.
Sennheiser HD 450BT Noise cancelling Headphone Bluetooth with microphone - Black
Sennheiser HD 450BT Noise cancelling Headphone Bluetooth with microphone - Black
Condition
Excellent
Purchased
3/20/24
Reviewed 1/8/25, United States.
We love back market but not happy with this product. When using the wireless feature the left side has no volume..in researching the product it seems to be an issue. As an adult I would return this and get a refund but it was a gift for a teenager and the teenager is willing to use the cord and hope for the best.
Sennheiser HD 450BT Noise cancelling Headphone Bluetooth with microphone - Black
Sennheiser HD 450BT Noise cancelling Headphone Bluetooth with microphone - Black
Condition
Excellent
Purchased
12/3/24
Reviewed 12/26/25, United States.
The headphones work great so far! They hurt my ears but other than that, they are fantastic.
Sennheiser HD 450BT Noise cancelling Headphone Bluetooth with microphone - Black
Sennheiser HD 450BT Noise cancelling Headphone Bluetooth with microphone - Black
Condition
Excellent
Purchased
11/25/25
Reviewed 9/9/24, United States.
They came in box with all accessories and instructions. not a scratch in sight and the sound quality is unmatched.
Sennheiser HD 450BT Noise cancelling Headphone Bluetooth with microphone - Black
Sennheiser HD 450BT Noise cancelling Headphone Bluetooth with microphone - Black
Condition
Excellent
Purchased
8/23/24
Reviewed 4/26/24, United States.
These are the best headphones ever. They arrived early and in amazing and condition. The sound quality is the best I've ever had. Thanks back market for the best birthday ever.
Sennheiser HD 450BT Noise cancelling Headphone Bluetooth with microphone - Black
Sennheiser HD 450BT Noise cancelling Headphone Bluetooth with microphone - Black
Condition
Excellent
Purchased
3/24/24
508386MPN
WirelessConnectivity
BlackColor
YesMicrophone
NoGaming
YesBluetooth
YesNoise cancelling
YesFoldable
SennheiserBrand
Step up to great wireless sound with the new HD 450BT. Delivering active noise cancellation, high-quality wireless codec support (AAC, aptX™ Low Latency), and Bluetooth® 5.0, this headset gives you superior sound with deep dynamic bass. Exceptional versatility for audio lovers is guaranteed by Voice Assistant access, the Sennheiser Smart Control App and a 30-hour battery life.
Features
What's in the box?




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