Sennheiser HD 450BT : with Active Noise Cancellation and Long Battery Life

Technical Specifications

• General

  • Model: Sennheiser HD 450BT
  • Form Factor: Over-ear, closed-back
  • Transducer Principle: Dynamic
  • Frequency Response: 18 Hz – 22,000 Hz
  • Impedance: 35 Ohm (passive), 32 Ohm (active)
  • Sound Pressure Level (SPL): 108 dB (1 kHz/0 dBFS)
  • Weight: 238 g
  • Special Feature: Foldable design for easy transport
  • Colors: Black, White

• Connectivity

  • Bluetooth Version: 5.0
  • Supported Profiles: A2DP, AVRCP, HSP, HFP
  • Supported Codecs: SBC, AAC, aptX™, aptX™ Low Latency
  • Wired Operation: Yes, via included 2.5 mm audio cable

• Battery and Charging

  • Battery Life: Up to 30 hours (with Bluetooth and ANC enabled)
  • Charging Time: Approximately 2 hours for a full charge
  • Battery Type: Rechargeable lithium-polymer battery (300 mAh)
  • Charging Port: USB-C

• Special Features

  • Active Noise Cancellation (ANC): Yes
  • Microphone: Integrated microphone for clear voice quality
  • Controls: Intuitive button controls on the earcup
  • Voice Assistant: Dedicated button for voice assistants (Google Assistant, Siri)
  • Smart Control App: Sound personalization via an equalizer, firmware updates, and podcast mode

Description

The Sennheiser HD 450BT headphones offer a perfect combination of superb audio quality and wireless freedom. They leverage Sennheiser’s long-standing audio expertise to deliver a detailed, dynamic sound with deep bass. A highlight of these headphones is the Active Noise Cancellation (ANC), which effectively blocks out distracting ambient noise, allowing for an undisturbed listening experience—ideal for commuters or travelers.

Thanks to Bluetooth 5.0 technology and support for high-quality codecs like aptX™ Low Latency, a reliable and virtually lag-free transmission is ensured, which is a major advantage when watching videos or movies. The connection to a smartphone or other devices is fast and stable.

Design, Battery, and Controls

The HD 450BT is designed to be both comfortable and robust. The over-ear design and soft ear pads ensure high comfort even during extended periods of wear. The foldable design and the included carrying case make it an ideal companion for on-the-go. The battery life is outstanding, offering up to 30 hours of playback with ANC and Bluetooth enabled. A full charge via the modern USB-C port takes just two hours.

Controlling the headphones is intuitive via buttons on the earcup, which can be used to manage music, calls, and the voice assistant. With the Sennheiser Smart Control App, the sound can be individually customized using an equalizer. The app also offers a special podcast mode to improve speech intelligibility.