Sennheiser ACCENTUM Wireless SE Hybrid Noise Cancelling Over-Ear Headphones with BTD 600

The Sennheiser ACCENTUM Wireless SE Special Edition headphones combine premium Sennheiser sound, effective Hybrid Active Noise Cancellation and exceptional battery life in a comfortable over-ear design. Featuring custom-engineered 37mm dynamic drivers, Bluetooth 5.2 connectivity and up to 50 hours of wireless playback with ANC enabled, ACCENTUM Wireless SE delivers an engaging listening experience for music, travel, commuting and everyday entertainment.

This Special Edition includes the Sennheiser BTD 600 Bluetooth USB dongle, providing a convenient way to enjoy high-quality wireless audio from compatible computers and other supported devices. With aptX HD codec support, customizable sound settings and intuitive controls, ACCENTUM Wireless SE combines audio performance with everyday versatility.

Sennheiser Signature Sound

ACCENTUM Wireless SE features Sennheiser's in-house engineered 37mm dynamic transducer system, designed to reproduce music with powerful bass, natural vocals and detailed high frequencies.

With a frequency response extending from 10Hz to 22kHz, the headphones deliver a balanced and immersive listening experience across a wide range of musical genres. Carefully tuned acoustics help preserve clarity and detail, whether enjoying music, podcasts or other entertainment.

BTD 600 Bluetooth Dongle Included

The ACCENTUM Wireless SE includes the Sennheiser BTD 600 Bluetooth USB dongle, allowing compatible devices to establish a dedicated high-quality wireless audio connection with the headphones.

The included adapter provides a convenient solution for computers and other supported USB devices, helping deliver reliable wireless performance without depending entirely on the host device's built-in Bluetooth audio capabilities.

With compatible headphones and source equipment, the BTD 600 supports advanced Bluetooth audio transmission for improved sound quality and connection stability.

Hybrid Active Noise Cancellation

Hybrid Active Noise Cancellation helps reduce distracting environmental sounds, allowing listeners to focus on music, entertainment and conversations.

Whether commuting, travelling or working in a busy environment, the ANC system helps create a more immersive listening experience by reducing unwanted background noise.

Transparency Mode

Transparency Mode allows surrounding sounds to be heard without removing the headphones. This makes it convenient to listen for announcements, communicate with others or remain aware of the environment when needed.

Up to 50 Hours of Battery Life

ACCENTUM Wireless SE provides up to 50 hours of wireless music playback with active noise cancellation enabled. The long-lasting rechargeable battery makes the headphones ideal for extended travel, long workdays and everyday listening without frequent charging.

A full charge takes approximately three hours, while a quick 10-minute charge provides up to five hours of additional playback.

Personalized Sound with Smart Control Plus

The Sennheiser Smart Control Plus app allows users to customize their listening experience through a built-in five-band equalizer, selectable sound modes and Sound Zones.

Bass Boost provides a more powerful low-frequency presentation, while Podcast Mode is designed to improve the clarity of spoken content. Sound Zones allow preferred audio settings to be associated with different listening environments.

Clear Calls with Beamforming Microphones

Two integrated MEMS microphones use beamforming technology to help capture speech while reducing unwanted background noise.

This microphone system supports hands-free calls and voice communication with compatible smartphones, computers and other Bluetooth-enabled devices.

Comfortable Over-Ear Design

ACCENTUM Wireless SE features a lightweight, ergonomic over-ear design engineered for comfortable extended listening sessions. Its circumaural earcups surround the ears, providing a comfortable fit and passive noise isolation that complements the Hybrid ANC system.

Weighing approximately 222 grams, the headphones are designed for everyday portability without sacrificing comfort or acoustic performance.

Bluetooth 5.2 Connectivity

Bluetooth 5.2 provides wireless connectivity with compatible smartphones, tablets, computers and other audio devices. Support for SBC, AAC, aptX and aptX HD codecs allows the headphones to adapt to different source devices and audio requirements.

The included BTD 600 adapter further expands connection options for compatible USB-equipped devices.

Features:

• Sennheiser ACCENTUM Wireless Special Edition headphones
• BTD 600 Bluetooth USB dongle included
• 37mm Sennheiser dynamic transducers
• Sennheiser Signature Sound
• 10Hz to 22kHz frequency response
• Hybrid Active Noise Cancellation
• Transparency Mode for environmental awareness
• Bluetooth 5.2 wireless connectivity
• Bluetooth Class 1 performance
• aptX HD audio codec support
• aptX, AAC and SBC codec compatibility
• Up to 50 hours of playback with ANC enabled
• 10-minute quick charge provides up to 5 hours of playback
• Approximately 3-hour full charging time
• Rechargeable 800mAh lithium-ion battery
• USB-C charging
• Built-in five-band equalizer
• Bass Boost sound mode
• Podcast sound mode
• Customizable sound settings
• Sound Zones support
• Sennheiser Smart Control Plus app compatibility
• Two MEMS microphones with beamforming
• Hands-free calling support
• Lightweight ergonomic over-ear design
• Comfortable circumaural earcups
• Compatible with supported Bluetooth smartphones and computers
• Designed for music, travel, commuting and everyday listening

Specifications:

General

• Brand: Sennheiser
• Model: ACCENTUM Wireless SE
• Article Number: 700427
• Product Type: Wireless Over-Ear Headphones
• Edition: Special Edition with BTD 600
• Wearing Style: Headband Stereo Headphones
• Ear Coupling: Around-the-Ear / Circumaural
• Noise Cancellation: Hybrid Active Noise Cancellation

Driver & Acoustic Performance

• Transducer Principle: Dynamic
• Driver Size: 37mm (1.46")
• Frequency Response: 10Hz - 22kHz
• Sound Pressure Level: 106dB SPL (1kHz / 0dBFS)
• Total Harmonic Distortion: Less Than 0.3% (1kHz / 100dB SPL)
• Active Noise Cancellation: Hybrid ANC
• Transparency Mode: Supported

Bluetooth & Wireless Connectivity

• Bluetooth Version: Bluetooth 5.2
• Bluetooth Class: Class 1
• Maximum Bluetooth Output Power: 10mW
• Bluetooth Transmission Frequency: 2,402 - 2,480MHz
• Bluetooth Modulation: GFSK, π/4 DQPSK, 8DPSK
• Bluetooth Profiles: A2DP, AVRCP, HFP, HSP, GATT
• Supported Audio Codecs: SBC, AAC, aptX, aptX HD, mSBC, CVSD
• Included Wireless Adapter: Sennheiser BTD 600 Bluetooth USB Dongle

Microphones & Calls

• Microphone Type: MEMS
• Microphone Configuration: 2 Microphones
• Microphone Frequency Response: 50Hz - 8kHz
• Microphone Technology: Beamforming Noise Reduction
• Hands-Free Calling: Supported

Battery & Charging

• Maximum Battery Life: Up to 50 Hours via Bluetooth with ANC Enabled
• Battery Type: Built-In Rechargeable Lithium-Ion
• Battery Capacity: 800mAh
• Full Charging Time: Approximately 3 Hours
• Fast Charging: 10 Minutes for Up to 5 Hours of Playback
• Charging Connection: USB-C
• Charging Input: 5V DC / 700mA Maximum

Sound Customization

• Equalizer: Five-Band EQ
• Sound Modes: Bass Boost, Podcast Mode and Customizable Settings
• Sound Zones: Supported
• Companion App: Sennheiser Smart Control Plus
• App Compatibility: iOS and Android

Dimensions & Weight

• Dimensions (W x H x D): 6.5 x 7.7 x 1.9" (16.5 x 19.5 x 4.8 cm)
• Weight: 222g (7.8 oz)
• Magnetic Field Strength: 3.0mT

Operating Conditions

• Operating Temperature: 0°C to 40°C
• Charging Temperature: 10°C to 40°C
• Storage Temperature: -20°C to 60°C
• Operating Relative Humidity: 10-80%
• Storage Relative Humidity: 10-90%

What's in the Box:

• 1 x Sennheiser ACCENTUM Wireless SE Headphones
• 1 x Sennheiser BTD 600 Bluetooth USB Dongle
• 1 x USB-C Charging Cable
• Quick Guide and User Manual