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Sennheiser HD 450SE User Manual

Sennheiser HD 450SE
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HD 450SE | 1
HD 450SE
Around-ear headphones
Model: SEBT4
Instruction manual
Use the search function, the navigation (left) or the following links:
Start
“Product overview”
“Getting started”
“Using the headphones”
“FAQ/If a problem occurs ...
“Specifications”
Sennheiser electronic GmbH & Co. KG
Am Labor 1
30900 Wedemark
Germany
www.sennheiser.com
Version: 05/21 A01
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Sennheiser HD 450SE Specifications

General IconGeneral
TypeOver-ear
ConnectivityWireless, Wired
Bluetooth Version5.0
Noise CancellationActive Noise Cancellation
Battery LifeUp to 30 hours
Charging Time2 hours
Frequency Response18 Hz - 22 kHz
Weight238 g
DriverDynamic
FoldableYes
MicrophoneYes
Impedance18 Ω
Supported CodecsAAC, SBC, AptX
Total Harmonic Distortion (THD)< 0.3% (1 kHz, 100 dB)
Connector3.5 mm

Summary

Important Safety Instructions

Health and Accident Prevention

Essential safety precautions for health, accident prevention, and proper product use.

Product Protection and Malfunctions

Guidelines to avoid damage, malfunctions, and maintain product integrity.

Battery Safety Precautions

Critical safety instructions for the lithium polymer rechargeable battery.

Package Contents

Included Accessories Overview

Lists all items included in the product packaging, such as cables and guides.

Product Overview

Headphone Components and Controls

Identifies physical parts and controls of the headphones with numbered labels.

LED Status Indicators

LED Meanings During Operation

Explains LED light patterns and their states during normal use.

LED Meanings During Calls

Explains LED light patterns during phone calls.

Audio Feedback Signals

Voice Prompts and Beeps

Describes audible feedback for various headphone functions.

Getting Started

Initial Setup and Connection

Guides on charging, app installation, and initial Bluetooth connection.

Headband Adjustment and Fit

Battery Charging and Status

Charging Process Details

Information on charging time, process, and LED indicators.

Bluetooth Wireless Connection

Connection Basics and Compatibility

Explains Bluetooth version, compatibility, and connection profiles.

Pairing the Headphones

Bluetooth Pairing Procedure

Step-by-step instructions for connecting headphones to a Bluetooth device.

Smart Control App Integration

App Installation and Use

How to install and utilize the app for enhanced features and settings.

Disconnecting from Bluetooth

Switching Headphones On

Switching Headphones Off

Headband Adjustment and Fit

Battery Status Information

Adjusting the Volume

Active Noise Cancellation (ANC)

ANC Functionality and Notes

Explanation of ANC features, notes, and tips.

Activating and Deactivating ANC

Instructions for turning ANC on and off.

Music Playback Control

Playback and Track Navigation

Functions for playing, pausing, and skipping music tracks.

Phone Call Management

Making and Handling Calls

Procedures for making, answering, rejecting, and managing calls.

Voice Assistant and Dialing

Using Voice Assistants

How to use voice assistants like Siri, Google Assistant, or Alexa.

Sound Effects and Equalizer

Adjusting Sound Settings

How to adjust sound effects and equalizer settings via the Smart Control app.

Audio Cable Usage

Connecting and Flight Mode

Using the headphones with an audio cable and activating flight mode.

Connecting via Audio Cable

Cable Connection Procedure

Step-by-step instructions for connecting the headphones using the audio cable.

Storing and Transporting

Folding and Packing Guide

Guidance on folding and packing the headphones for storage or travel.

Care and Maintenance

Cleaning and Product Care

Advice on cleaning the headphones and avoiding damage from liquids.

Ear Pad Replacement

Steps for removing and fitting new ear pads.

Installing Firmware Updates

FAQ and Problem Solving

Finding Troubleshooting Resources

Directs users to FAQs and support for unresolved problems.

Resetting the Headphones

Instructions for performing a factory reset on the headphones.

Clearing Bluetooth Pairing Data

Specifications

Manufacturer Declarations

Warranty and Support

Details product warranty and how to find service partners.

Regulatory Compliance

Lists applicable directives and declarations of conformity.

Product Disposal Guidelines

Information on recycling and proper disposal of electronics and batteries.

Trademark Acknowledgements

Lists recognized trademarks used in the documentation.

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