Sennheiser ACCENTUM Wireless Over-Ear Headphones (Model 700174) User Manual

Introduction

The Sennheiser ACCENTUM Wireless Over-Ear Headphones combine precision engineering with adaptive Active Noise Cancellation (ANC) for an enhanced audio experience. Designed for extended listening, these Bluetooth headphones offer clarity for music, calls, and gaming. Their lightweight, ergonomic design with plush cushioning ensures comfort during prolonged use.

Key Features:

• HD Stereo Sound: Engineered with a 5-band EQ and customizable sound modes for a personalized audio experience.
• Extended Battery Life: Up to 50 hours of listening time with fast charging.
• Hybrid ANC & Transparency Mode: Active Noise Cancellation to minimize distractions and Transparency Mode to stay aware of surroundings.
• Clear Calls: Dual-microphone beamforming technology for crisp voice transmission.
• Comfortable Design: Lightweight, ergonomic over-ear design with soft-touch silicon-lined headband and plush ear cushions.
• Multipoint Connectivity: Seamlessly connect to multiple devices.

Setup

1. Charging the Headphones

Before first use, fully charge your ACCENTUM Wireless headphones.

• Connect the provided USB-C cable to the charging port on the headphones and to a USB power source.
• A full charge takes approximately 3 hours.
• The LED indicator will show charging status and turn off when fully charged.
• A full charge provides up to 50 hours of battery life.

2. Powering On/Off

• To power on, press and hold the power button until the LED indicator lights up.
• To power off, press and hold the power button until the LED indicator turns off.

3. Bluetooth Pairing

The ACCENTUM Wireless headphones use Bluetooth 5.2 for stable connectivity up to 10 meters.

1. Ensure the headphones are powered off.
2. Press and hold the power button for approximately 5 seconds until the LED flashes blue and red, indicating pairing mode.
3. On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
4. Select "Sennheiser ACCENTUM Wireless" from the list.
5. Once paired, the LED will flash blue.

4. Sennheiser Smart Control App

Download the Sennheiser Smart Control app for advanced features, sound customization, and firmware updates.

• Search for "Sennheiser Smart Control" in your device's app store.
• Install the app and follow the on-screen instructions to connect your headphones.

Operating the Headphones

1. Basic Controls

The headphones feature intuitive media controls located on the earcups. Refer to the quick guide included in the packaging for a detailed diagram of button functions.

2. Active Noise Cancellation (ANC) and Transparency Mode

Switch between ANC and Transparency Mode to adapt to your environment.

• Hybrid ANC: Reduces ambient noise for an immersive listening experience.
• Transparency Mode: Allows you to hear your surroundings without removing the headphones.
• Toggle between these modes using the dedicated button on the earcup or via the Smart Control app.

3. Making and Receiving Calls

The integrated dual-microphone beamforming technology ensures clear voice pickup during calls.

• Use the media controls to answer, end, or reject calls.
• Voice assistants can also be activated through the headphones.

4. Sound Customization

Personalize your audio experience using the 5-band equalizer and various sound modes available in the Sennheiser Smart Control app.

Maintenance

1. Cleaning

• Wipe the headphones with a soft, dry cloth.
• Do not use liquid cleaners or solvents.
• Clean the ear cushions gently to maintain hygiene and comfort.

2. Storage

When not in use, store your headphones properly to protect them from damage.

• The headphones feature fold-flat earcups for compact storage.
• Utilize the included carrying case to protect the headphones during travel or storage.

Troubleshooting

If you encounter issues with your Sennheiser ACCENTUM Wireless headphones, refer to the common solutions below.

No Sound or Poor Audio Quality

• Ensure the headphones are powered on and fully charged.
• Verify that the headphones are correctly paired with your device.
• Check the volume levels on both the headphones and your connected device.
• Move closer to your audio source to ensure you are within the 10-meter Bluetooth range.
• Try disconnecting and re-pairing the headphones with your device.

Connectivity Issues

• If experiencing difficulty connecting to a laptop or other devices, ensure no other devices are trying to connect simultaneously.
• Disable and re-enable Bluetooth on your device.
• Perform a factory reset on the headphones (refer to the full manual for specific instructions).

ANC Performance

• Ensure the earcups form a proper seal around your ears. Adjust the headband for a snug fit.
• In very noisy environments, some sounds may still be audible, which is normal for ANC technology.

Power On/Off Confusion

• Pay attention to the LED indicator for power status.
• A quick press and hold typically powers on/off, while a longer hold might initiate pairing. Consult the full manual for precise button press durations.

Specifications

Warranty and Support

Warranty Information

The Sennheiser ACCENTUM Wireless Over-Ear Headphones come with a 1-Year Manufacturer Warranty. Please retain your proof of purchase for warranty claims.

Customer Support

For further assistance, technical support, or to view additional product information, please visit the official Sennheiser store or contact their customer service.

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