Introduction
The Sennheiser Momentum Sport earbuds are designed to enhance your active lifestyle with high-quality audio, advanced fitness tracking, and robust durability. This manual provides essential information for setting up, operating, and maintaining your earbuds to ensure optimal performance and longevity.

Figure 1: Sennheiser Momentum Sport Earbuds in their open charging case.
What's in the Box
Your Sennheiser Momentum Sport package includes the following components:
- Momentum Sport earbuds
- Charging case
- USB-C charging cable
- Silicone ear tip sets (various sizes)
- Silicone ear fin sets (various sizes)
Setup
1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case. Connect the provided USB-C cable to the charging case and a power source. The LED indicator on the case will show charging status. A full charge provides up to 24 hours of total playtime (6 hours from earbuds + 18.5 hours from case).
2. Attaching Ear Fins and Tips for a Secure Fit
For optimal sound quality, comfort, and accurate fitness tracking, select the correct size of ear tips and ear fins. Experiment with different sizes to find the best seal and most secure fit for your ears. The ear tips are translucent to ensure proper sensor function.

Figure 2: Earbuds with customizable ear fins and tips for a secure fit.
3. Pairing with Your Device (Bluetooth)
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your smartphone or other device, go to Bluetooth settings.
- Select 'MOMENTUM Sport' from the list of available devices.
- Confirm pairing if prompted.
4. Sennheiser Smart Control App
Download the Sennheiser Smart Control app from your device's app store. This app allows you to customize sound settings, manage touch controls, monitor fitness data, and update firmware.
5. Firmware Updates
Regularly check for and install firmware updates via the Smart Control app to ensure your earbuds have the latest features and performance enhancements.
Operating Instructions
1. Touch Controls
The earbuds feature customizable touch controls for music playback, calls, volume, and noise control. You can adjust the sensitivity of these controls and assign different functions to single, double, or triple taps, as well as tap-and-hold gestures, within the Sennheiser Smart Control app. The earbuds also support controlling functions by tapping the area near your cheek.
2. Sound Features
- Sport Sound Tuning: The earbuds are tuned with a sport sound profile, offering robust bass to provide an immersive audio experience during workouts.
- Adaptive Active Noise Cancellation (ANC): This feature automatically adjusts noise cancellation levels to block out distracting ambient sounds, helping you focus on your training.
- Transparency Mode: Allows you to hear your surroundings without removing the earbuds, enhancing situational awareness for outdoor activities.
- Equalizer: Use the equalizer in the Smart Control app to customize the sound profile to your personal preference.
3. Fitness Tracking Powered by Polar
The Momentum Sport earbuds integrate in-ear sensors for real-time heart rate and body temperature tracking. This data can be synced with various fitness apps and devices for comprehensive health and performance metrics.
- Heart Rate Monitoring: Provides real-time insight into your exertion levels.
- Body Temperature Tracking: Helps monitor changes in your body temperature during training sessions.
- Polar Flow App: For full integration and detailed analytics of your heart rate and body temperature data, connect with the Polar Flow app.
- Compatibility: Fitness data is compatible with leading sports watches, fitness equipment, and apps including Apple Watch, Garmin, Strava, Zwift, and Peloton.

Figure 3: Earbuds featuring fitness tracking powered by Polar.
4. Connectivity
- Bluetooth 5.2: Ensures a stable and efficient wireless connection.
- Multipoint Support: Connect your earbuds to two devices simultaneously, allowing you to seamlessly switch between them. For example, you can stream music from one device while sending fitness data to another.
Maintenance
- Cleaning: Regularly clean the ear tips and earbuds with a soft, dry cloth to prevent wax buildup and maintain hygiene.
- Water and Dust Resistance: The earbuds have an IP55 rating, making them resistant to dust, sweat, and splashes. The charging case has an IP54 rating. Avoid submerging the earbuds or case in water.
Troubleshooting
- Connectivity Issues: If earbuds fail to connect, ensure they are charged, within range, and not connected to another device. Try resetting the Bluetooth connection on your device.
- Touch Control Sensitivity: Adjust the tap sensitivity in the Smart Control app if you experience accidental touches or unresponsive controls.
- Inaccurate Fitness Readings: Ensure ear tips are correctly sized and securely fitted. Only use Sennheiser's translucent ear tips for accurate sensor readings.
Specifications
| Model Name | MOMENTUM Sport |
| Item Model Number | 14500-850 |
| Connectivity Technology | Wireless (Bluetooth 5.2) |
| Noise Control | Adaptive Active Noise Cancellation |
| Special Feature | Heart Rate Monitor, Body Temperature Sensor |
| Water Resistance Level | IP55 (Earbuds), IP54 (Charging Case) |
| Battery Life | 6 Hours (Earbuds), 24 Hours (Total with Case) |
| Charging Time | 1.5 Hours |
| Control Method | Touch |
| Included Components | Earbuds, Charging Case & Cable, Silicone Ear Tip & Fin Sets |
Warranty & Support
For warranty information, technical support, or further assistance, please refer to the official Sennheiser website or contact their customer service. Keep your proof of purchase for warranty claims.





