Ultimate Ears 991-000377 True Wireless Bluetooth Earbuds User Manual
- June 13, 2024
- ULTIMATE EARS
Table of Contents
Ultimate Ears 991-000377 True Wireless Bluetooth Earbuds
Introduction
The Ultimate Ears 991-000377 True Wireless Bluetooth Earbuds offer an immersive and wireless audio experience that’s perfect for music lovers, gamers, and those on the go. These earbuds are designed to deliver high- quality sound, convenience, and versatility, making them an excellent choice for various activities. Whether you’re listening to music, taking calls, or gaming, these earbuds have you covered.
Specifications
- Model: Ultimate Ears 991-000377 True Wireless Bluetooth Earbuds
- Type: In-ear, true wireless Bluetooth earbuds
- Bluetooth Version: Bluetooth (specific version may vary)
- Driver Size: Not specified
- Battery Life: Varies based on usage and specific model
- Charging Case: Provides additional charges on the go
- Charging Interface: Typically uses USB-C or Micro USB for charging
- Water Resistance: Varies by model; may include water-resistant or waterproof features
- Touch Controls: Manage music playback, take calls, adjust volume, and more with touch gestures on the earbuds.
- Voice Assistant Integration: Compatible with popular voice assistants like Siri and Google Assistant.
What’s in the Box
The contents of the box may vary depending on the specific model and package, but typically include:
- Ultimate Ears True Wireless Bluetooth Earbuds
- Charging case
- USB-C or Micro USB charging cable
- Ear tips in various sizes
- User manual and documentation
Key Features
- True Wireless Freedom: Enjoy the convenience of wireless audio with no cords or cables.
- High-Quality Sound: Experience clear and immersive audio with the sound quality expected from Ultimate Ears.
- Battery Life: The earbuds offer varying levels of battery life, providing several hours of playback or talk time on a single charge.
- Charging Case: The included charging case allows you to recharge the earbuds on the go, extending their usage time.
- Water Resistance: Some models may feature water-resistant or waterproof properties, making them suitable for workouts and outdoor activities.
- Touch Controls: Easily control your music, answer calls, adjust volume, and activate voice assistants using intuitive touch gestures on the earbuds.
- Voice Assistant Integration: Stay connected and use voice commands with popular voice assistants like Siri and Google Assistant.
Custom Fit In 60 Seconds
- Download the UE FITS app
- Place earbuds in your ears
- Tap start button in app to trigger 60-second molding magic
- You’re all set! Enjoy your FITS
- Check back for firmware updates on the app
The Most Comfortable Earbuds. Ever.
- Perfect fit for small ears
- No pressure points or fatigue
- Perfect for all-day wear
- Ideal for phone and work calls
- Never-falls-out fit
- Easy in-app setup
How to Use
- Charge the earbuds by placing them in the charging case and connecting the case to a power source using the provided charging cable.
- Remove the fully charged earbuds from the case.
- Enable Bluetooth on your paired device (e.g., smartphone, tablet).
- Locate and select the Ultimate Ears earbuds in your device’s Bluetooth settings to pair them.
- Once paired, use touch controls on the earbuds to manage music playback, answer calls, adjust volume, and activate voice assistants.
Dual mics
Premium dual mics and speakers on each earbud for crystal clear phone and Zoom
calls 
Safety
Volume Levels:
- Avoid listening to audio at excessively high volumes for extended periods, as this can lead to hearing damage.
- Use a comfortable and safe listening volume. If you’re unsure about safe listening levels, follow the “60/60 rule” – listen at 60% of the maximum volume for no more than 60 minutes at a time.
Environmental Awareness:
- When wearing the earbuds, remain aware of your surroundings, especially when in public areas, near traffic, or engaging in activities where situational awareness is crucial for safety.
- Adjust the volume or use transparency modes if available to stay connected to your environment.
Do Not Use While Driving or Biking:
- It is dangerous and often illegal to use earbuds while driving a vehicle or riding a bicycle, as it can impair your ability to hear important auditory cues like horns or sirens. Always prioritize road safety.
Secure Fit:
- Ensure that the earbuds fit securely in your ears to prevent them from falling out during physical activities or while moving around. This can also help improve sound quality and noise isolation.
The Perfect Fit Promise
We promise you’ll love your fit and our team will work with you until your ears are happy. If you don’t feel like your fit is perfect, we’ll send you a new pair of moldable tips, free of charge.
Ear Health:
- If you experience discomfort, pain, or irritation while using the earbuds, discontinue use and consult a healthcare professional or audiologist if necessary.
- Proper ear hygiene is essential to prevent ear infections. Keep your ears clean and dry.
Noise Isolation:
- Be cautious when using the earbuds in environments where noise isolation can be a safety concern, such as while walking or jogging near traffic. Consider using only one earbud or using a transparency mode, if available, to remain aware of your surroundings.
Child Safety:
- Keep the earbuds out of the reach of small children to prevent accidental ingestion or choking hazards.
Awareness of Battery Levels:
- Be aware of the battery levels of the earbuds, especially if you plan to use them for an extended period. Low battery levels may lead to interruptions in your audio experience.
Storage:
- Store the earbuds and charging case properly when not in use to protect them from damage and keep them charged for your next use.
Proper Charging:
- Use only the provided charging cable and ensure that the earbuds are properly seated in the charging case to avoid overheating or damage.
- Charge the earbuds in a well-ventilated area, away from flammable materials.
Consultation:
- If you have any concerns about the safety of using the earbuds, hearing loss, or discomfort, consider consulting with an audiologist or healthcare professional for advice and guidance.
Maintenance
Cleanliness:
- Regularly clean the earbuds, including the ear tips, speaker grilles, and the charging case, to remove dirt, sweat, earwax, and other debris. Use a soft, dry cloth or a cotton swab to gently clean these surfaces.
- If your ear tips are removable, clean them separately with a damp cloth or warm, soapy water. Make sure they are completely dry before reattaching them to the earbuds.
Charging Contacts:
- Ensure that the charging contacts on both the earbuds and the charging case are clean and free from debris. Dirty contacts can interfere with the charging process.
Storage:
- When not in use, store the earbuds in their provided charging case. This not only keeps them protected from physical damage but also ensures they are charged and ready for use when needed.
Charging:
- Use the provided charging cable and ensure that the earbuds are properly seated in the charging case to make a secure connection. Over time, inspect the charging cable for any signs of wear or damage and replace it if necessary.
Battery Care:
- Lithium-ion batteries, like those in wireless earbuds, perform best when they are not regularly fully depleted or left at low charge levels for extended periods. Try to keep your earbuds and charging case charged above 20% when not in use.
Firmware Updates:
- Check for firmware updates for your Ultimate Ears earbuds on the manufacturer’s website or through their dedicated app, if available. Keeping your earbuds’ firmware up to date can improve performance and address any software-related issues.
Environmental Considerations:
- Avoid exposing your earbuds to extreme temperatures, high humidity, or direct sunlight for extended periods. Extreme conditions can impact the performance and lifespan of electronic components.
Eartip Replacement:
- If the ear tips become worn or damaged over time, consider replacing them with new ones. Properly fitting ear tips are essential for sound quality and noise isolation.
User Manual:
- Refer to the user manual for specific maintenance instructions provided by the manufacturer. They may offer additional guidance or tips tailored to your specific earbuds model.
Troubleshooting
Earbuds Not Pairing:
- Ensure that both earbuds are removed from the charging case.
- Put the earbuds into pairing mode. This is usually done by turning them on and holding the touch control area on both earbuds simultaneously until you see flashing LED lights or hear a pairing prompt.
- Open your device’s Bluetooth settings and look for the “Ultimate Ears” or the corresponding device name. Tap to connect.
Poor Audio Quality or No Sound:
- Check that the earbuds are securely placed in your ears and that the ear tips are the correct size for a good seal.
- Clean the ear tips and speaker grilles from any debris, earwax, or sweat that may affect sound quality.
- Ensure the volume on both your device and the earbuds is set to an appropriate level.
- Try repairing the earbuds with your device to establish a stable connection.
Bluetooth Connectivity Issues:
- Make sure your earbuds are within the effective Bluetooth range of your connected device (usually around 30 feet or 10 meters).
- Disconnect and forget the “Ultimate Ears” from your device’s Bluetooth settings, then re-pair the earbuds.
- Ensure your device’s Bluetooth is turned on and not connected to other Bluetooth devices that may interfere.
Earbuds Not Charging:
- Check that the charging case has sufficient battery power. If not, charge the case using the provided charging cable.
- Make sure the earbuds are correctly seated in the charging case and are making proper contact with the charging pins.
- Clean the charging contacts on the earbuds and the case to remove any dirt or debris that may be hindering charging.
Uneven Battery Drain:
- If one earbud is draining its battery faster than the other, ensure that both earbuds are fully charged before use.
- Reset the earbuds by placing them in the charging case, keeping the lid open, and holding the touch control area of both earbuds simultaneously until you see the LED lights flashing. Then, try pairing them again.
One Earbud Not Working:
- Check if the issue is with a specific earbud. If only one is not working, it might have a low battery or a connectivity issue.
- Try resetting both earbuds by placing them in the charging case and holding the touch control area of both earbuds simultaneously until you see the LED lights flashing. Then, try pairing them again.
Touch Controls Not Responding:
- Ensure you are using the correct touch gestures as per the user manual.
- Make sure the touch control areas on the earbuds are clean and free from any obstructions.
Sound Lag or Latency:
- Some devices may experience audio lag when streaming video. Check your device’s audio settings for any latency adjustment options.
- If available, enable low-latency or gaming mode on your device or earbuds.
FAQs
What are the Ultimate Ears 991-000377 True Wireless Bluetooth earbuds?
The Ultimate Ears 991-000377 earbuds are high-quality true wireless Bluetooth earbuds known for their excellent audio performance and comfort.
Do these earbuds have noise-cancellation features?
Yes, these earbuds offer noise-cancellation features to provide an immersive listening experience.
What is the battery life of these earbuds?
The battery life varies, but on average, you can expect several hours of playback time on a single charge. Refer to the product manual for specific details.
Are these earbuds water-resistant or suitable for workouts?
Yes, these earbuds are often designed to be water-resistant and suitable for workouts, making them a great choice for active individuals.
Do they come with a charging case?
Yes, these earbuds typically come with a charging case that provides extra battery life and easy storage.
What type of Bluetooth connectivity do they use?
These earbuds use Bluetooth technology for wireless connectivity to your devices.
Are they compatible with both Android and iOS devices?
Yes, these earbuds are designed to work with both Android and iOS devices, offering broad compatibility.
Can I use them for phone calls?
Yes, these earbuds often come with built-in microphones and can be used for phone calls as well as listening to music.
How do I pair them with my device?
Pairing instructions can be found in the product manual. Typically, you'll need to enable Bluetooth on your device and follow the pairing process.
Do they have touch controls for music playback and calls?
Yes, many models of these earbuds feature touch controls for convenient music playback and call management.
Are replacement ear tips included in the package?
Some packages include replacement ear tips in different sizes to ensure a comfortable fit.
Is there a warranty for these earbuds?
Warranty one year, fore more info please check the warranty details provided by the manufacturer or retailer at the time of purchase.