Proudly refurbished by Lavi Global LLC
12 verified reviews in the last 24 months.
Joshua D.
Purchased on March 20, 2024
Verified purchaseSound 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.
Reviewed in the United States on March 26, 2025
Adrijana A.
Purchased on June 1, 2023
Verified purchaseSecond headphones I've ordered. I'm very satisfied. Although the price was around $50 less than new set, but I'm returning customer to Back Market. I've got the headphones in the open box, with warranty, instructions, case and necessary wires for charging.
Reviewed in the United States on March 26, 2025
Grace M.
Purchased on May 12, 2023
Verified purchaseIm not sure if this is specific to the refurbashin quality of the item or this brand itself but I’ve had these for a while and though I love them, they have some weird quirks. First is that they have multi point connection. Great. Love that. However, if I am listing on my phone but also connected to my computer and I walk away from the computer, it repeatedly pauses what my phone is playing to tell me I lost connection with the other device. The active noise canceling is mild but decent. Activating it is finicky at best when you’re not actually playing music. They also don’t turn off automatically after a while of nothing playing. so if you forget to power it down after taking it off it just stays powered on. good thing it has a good battery life Overall they are good quality and the bad quirks could be ironed out probably if you get the next gernation versions.
Reviewed in the United States on March 26, 2025
Leesh G.
Purchased on August 23, 2024
Verified purchaseThey came in box with all accessories and instructions. not a scratch in sight and the sound quality is unmatched.
Reviewed in the United States on March 26, 2025
Sade B.
Purchased on March 24, 2024
Verified purchaseThese 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.
Reviewed in the United States on March 26, 2025
Marella B.
Purchased on November 16, 2023
Verified purchasevery nice, no instruction manual which was expected. did come with a charging cable but no audio cable, needs a 1-3.5 i believe
Reviewed in the United States on March 26, 2025
Christa L.
Purchased on December 3, 2024
Verified purchaseWe 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.
Reviewed in the United States on March 26, 2025
508386Manufacturing part numbers (MPN)
BlackColor
HD 450BTModel
YesWireless
YesBluetooth
YesMicrophone
YesNoise cancelling
NoGaming
YesFoldable
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?
Manufacturing part numbers (MPN) | 508386 |
Color | Black |
Model | HD 450BT |
Wireless | Yes |
Bluetooth | Yes |
Microphone | Yes |
Noise cancelling | Yes |
Gaming | No |
Foldable | Yes |
Connectivity | Wireless |
Brand | Sennheiser |
Weight | 8 oz |
The best prices for high-quality reborn tech by sellers we’ve checked and vetted. We don’t mind if you Google us.