With active noise cancellation and a closed back design, the HD 458BT delivers superior, distraction-free sound with deep dynamic bass – even in loud environments. Exceptional quality is assured by high-quality wireless codec support, including AAC and AptX™, with AptX™ Low Latency to keep audio perfectly in sync with on-screen action when watching videos. Sennheiser’s Smart Control App makes it possible to tailor the sound via an intuitive equalizer or using the special podcast mode to boost speech intelligibility.
A great companion for travel, the HD 458BT 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.
|Weight||Approx. 238 g|
|App support||EQ and updates via Sennheiser Smart Control App|
|Audio codec||SBC, AAC, AptX™, AptX™ Low Latency|
|Battery Specification||Built-in Lithium-Polymer rechargeable battery: 3.7 V ⎓, 600mAh|
|Supported Profiles||HSP, HFP, AVRCP, A2DP|
|Charging Current||500 mA max.|
|Charging time||Approx. 2 hours|
|Charging voltage||5 V, DC|
|Ear coupling||Around Ear|
|Frequency response||18 Hz to 22,000 Hz (-10 dB)|
|Frequency response (Microphone)||80 Hz to 6,000 Hz (-3 dB)|
|Transducer principle (Microphone)||MEMS|
|Modulation scheme||GFSK, π/4 DQPSK, 8DPSK|
|Operating time||30 hours music playback via Bluetooth with ANC activated|
|Pick-up pattern||Dual Beamforming|
|Sound pressure level (SPL)||108 dB (1 kHz/0 dBFS)|
|THD, total harmonic distortion||< 0.3 % (1 kHz, 100 dB)|
|Transducer principle||Dynamic, closed|
|Transmission frequency||2,402 MHz to 2,480 MHz|
Kopfkörer kam wie Neu an. Nicht zu erkennen das es B-Ware wäre. Das nenn ich Nachhaltigkeit! Weiter so. Jedoch im Vergleich mit andern Kopfhörern könnte der Klang besser sein. Aber für meinen Garten-Sound und Handy Telefonie ist es ein Top Gerät.
That's all, they are good.
Comfortable to wear for hours.
Annoying beeping was resolved by firmware update. However I hate having to install an app on my phone to use the headphones with a laptop.
The buttons are small and plenty, but I don't need to use them, apart from turning the headphones on and off.
My CX true are good too, everything works great is just because I didn't read peacefully the menu, I was thinking my Momentum doesn't work but it works great thank you
Der Kopfhörer ist super passt super keine Druck Punkte oder sowas! Klang mega nice! Dürfte ein wenig lauter sein! Benutzt den fürs Training und da könnte er Bissl lauter sein
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