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HD 450BT Refurbished
HD 450BT Refurbished
HD 450BT Refurbished

HD 450BT Refurbished

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Article number: B508386

Step up to great wireless sound with the HD 450BT from Sennheiser. Whether relaxing at home or on the go, they offer an exceptional combination of versatility and superior sound.

Created by audio specialist Sennheiser to deliver a superior sound experience with deep dynamic bass, they feature active noise cancellation to ensure enjoyment without distraction. Sound quality is assured by the latest wireless technology including Bluetooth 5.0 and AAC, aptX™ codec support with aptX™ Low Latency for perfectly synchronized audio when watching videos. The Sennheiser Smart Control App makes it easy to customize the sound via the equalizer or engage podcast mode for improved intelligibility of speech content.

A great companion for travel, the HD 450BT has a superb 30-hour battery life with fast USB-C charging, a Voice Assistant button for Siri and Google Assistant interaction, and a robust folding design for take-anywhere durability.
Frequency response (Microphone) 80 Hz to 6,000 Hz (-3 dB)
Transducer principle (Microphone) MEMS
Bluetooth Version 5.0
Supported Profiles HSP, HFP, AVRCP, A2DP
Frequency response 18 Hz to 22,000 Hz (-10 dB)
Sound pressure level (SPL) 108 dB (1 kHz/0 dBFS)
THD, total harmonic distortion < 0.3 % (1 kHz, 100 dB)
Ear coupling Around Ear
Transducer principle Dynamic, closed
Weight Approx. 238 g
Charging time Approx. 2 hours
Pick-up pattern Dual Beamforming
Operating time 30 hours music playback via Bluetooth with ANC activated
Battery Specification Built-in Lithium-Polymer rechargeable battery: 3.7 V ⎓, 600 mAh
Transmission frequency 2,402 MHz to 2,480 MHz
Charging Current 500 mA max.
Audio codec SBC, AAC, AptX™, AptX™ Low Latency
Charging voltage 5 V, DC
Modulation scheme GFSK, π/4 DQPSK, 8DPSK
App support EQ and updates via Sennheiser Smart Control

Customer Reviews

Based on 25 reviews
Nice deal

They looked like new out of the box, and it even smelled like coconut hahahahaha. Appart from that, they sound very good wired and via Bluetooth. The arch has been a bit uncomfortable at the beginning, but after some time I have grown used to it. The earpads, too, were a bit tight but again, I have grown used to it. However I don't think I can get a better deal than this, so I'm very happy with it

Mint condition

Looked like brand new. I'm very happy with the purchase, the sound is good, the battery life is excellent: I've been using them for several hours per day and on the third day after single charge they still had like 80% battery... Huge bang for your buck.

Alles genau wie beschrieben und erwartet!

Alles wie beschrieben und erwartet. Die Kopfhörer waren absolut wie neu, in jeder Hinsicht. Der Sound super gut, Funktion einwandfrei und Haptik sehr wertig. Ich bin echt sehr zufrieden


Probé otros antes, me interesaba, aparte de la calidad del sonido, que es muy buena, la comodidad y la cancelación activa. Son todo lo que buscaba. Son estupendos.

Uncomfortable headphones

I returned them because the ear cups was too small for my ears so it wasn't comfortable to wear.

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