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