Ertuly T33

Ertuly T33 Sleep Earbuds Instruction Manual

Model: T33 | Brand: Ertuly

Introduction

Thank you for choosing the Ertuly T33 Sleep Earbuds. These earbuds are designed to provide a comfortable and quiet listening experience, especially for sleep, travel, and work. Featuring Hybrid Active Noise Cancellation (ANC), Bluetooth 6.0 connectivity, and a compact design, the T33 earbuds aim to enhance your audio experience while minimizing external distractions. Please read this manual thoroughly before use to ensure proper operation and maintenance.

Package Contents

The Ertuly T33 Sleep Earbuds package includes the following items:

  • 1 x T33 Sleep Headphones Wireless Bluetooth
  • 1 x Charging Case
  • 1 x USB Charging Cable
  • 1 x User Manual
  • Additional ear tip sizes for customized fit

Product Overview

The Ertuly T33 Sleep Earbuds are engineered for comfort and effective noise reduction. Key features include:

  • Smart Hybrid ANC: Reduces up to 98% of disruptive sounds.
  • 48-Hour Total Playtime: 8 hours per charge, with the case providing multiple recharges.
  • Immersive Hi-Fi Sound: 13mm dynamic drivers for balanced audio.
  • Sweat-Resistant Design: IPX6 rating for protection against sweat and water.
  • Sleep Mode: Mutes alerts and blocks accidental touches.
  • Comfort Fit: Ultra-thin, lightweight design for side sleepers.
  • Bluetooth 6.0: Stable, low-latency connections and instant pairing.
  • Clear Call Quality: ENC microphones filter background noise.
Image showing a person sleeping peacefully with Ertuly T33 earbuds, illustrating 'Sleep Without Disruptions' and features like Snore Blocking, Soft-Fit, and Ultra-Mini Comfort.

Figure 1: Sleep Without Disruptions - Ergonomic design for peaceful sleep.

Diagram illustrating the dual-microphone Hybrid ANC technology of the Ertuly T33 earbuds, showing feedforward and feedback mics for up to 98% noise cancellation.

Figure 2: Active Noise Cancellation up to 98% - Dual-mic ANC for deep focus.

Image showing the ultra-soft, zero-pressure design of the Ertuly T33 earbuds, highlighting their comfort for side sleepers.

Figure 3: Pressureless Comfort for Side Sleepers - Designed for all-night wear.

Setup

1. Charging the Earbuds and Case

Before first use, fully charge the earbuds and charging case. The case features an LED battery indicator to show the current charge level.

  1. Place the earbuds into the charging case. Ensure they are correctly seated.
  2. Connect the provided USB-C charging cable to the charging port on the case and to a power source.
  3. The LED display on the case will show the charging progress. A full charge for the case takes approximately 1.5 hours.
Image displaying the Ertuly T33 charging case with earbuds, showing '48 hrs' total playtime, 6-8 hours single use, and 1.5 hours fast charging.

Figure 4: 48-Hour Total Playtime & Fast Charging - LED display indicates battery level.

2. Pairing with Your Device

The earbuds support Bluetooth 6.0 for stable and quick connections.

  1. Open the charging case. The earbuds will automatically enter pairing mode.
  2. On your device (smartphone, tablet, etc.), go to Bluetooth settings and enable Bluetooth.
  3. Search for available devices and select "T33" from the list.
  4. Once connected, you will hear an audio prompt, and the earbuds will be ready for use.
Image demonstrating the one-step auto pairing process of the Ertuly T33 earbuds with a smartphone, showing the earbuds in the open case and the device's Bluetooth menu.

Figure 5: One-Step Auto Pairing - Instant connection upon opening the case.

3. Achieving a Comfortable Fit

The T33 earbuds are designed for comfort, especially for side sleepers. Experiment with the included ear tip sizes to find the best fit for your ears.

  1. Ensure the silicone tip is securely attached to the earbud.
  2. Insert the earbud into your ear at an angle and gently twist to lock it in place. The low-profile design should sit flush within your ear, minimizing pressure when lying down.
Diagram showing two steps for achieving the perfect fit with Ertuly T33 earbuds: attaching the silicone tip and inserting the earbud with a gentle twist.

Figure 6: Get the Perfect Fit for Better Sleep - Steps for optimal earbud placement.

Operating Instructions

The Ertuly T33 earbuds feature touch controls for various functions:

Diagram illustrating the touch controls for Ertuly T33 earbuds, including play/pause, ANC on/off, next/previous song, volume up/down, answer/hang up/refuse call, and Sleep Mode activation.

Figure 7: Earbud Touch Control Functions.

1. Basic Controls

  • Play/Pause: Tap either earbud twice.
  • Next Song: Long press the right earbud for 2 seconds.
  • Previous Song: Long press the left earbud for 2 seconds.
  • Volume Up: Tap the right earbud once.
  • Volume Down: Tap the left earbud once.

2. Noise Control Modes

The earbuds offer Active Noise Cancellation (ANC) and Transparency Mode.

  • Switch Modes (ANC/Transparency): Triple-tap either earbud.

3. Sleep Mode

Activate Sleep Mode to prevent accidental touches and mute alerts for uninterrupted rest.

  • Activate/Deactivate Sleep Mode: Tap either earbud four times quickly.

4. Call Management

  • Answer Call: Tap either earbud once.
  • Hang Up Call: Long press either earbud for 2 seconds.
  • Refuse Incoming Call: Long press either earbud for 2 seconds.

5. Single & Dual Mode Flexibility

Use both earbuds for stereo sound or either one independently for calls or audio.

Maintenance

To ensure the longevity and optimal performance of your Ertuly T33 Sleep Earbuds, follow these maintenance guidelines:

  • Cleaning: Regularly clean the earbuds and charging case with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
  • Ear Tips: The silicone ear tips can be removed and washed with mild soap and water. Ensure they are completely dry before reattaching them to the earbuds.
  • Storage: When not in use, store the earbuds in their charging case to protect them from dust and damage. Store in a cool, dry place.
  • Charging: Use only the provided USB-C cable for charging. Avoid overcharging by disconnecting once fully charged.
  • Water Resistance: The earbuds have an IPX6 rating, meaning they are resistant to strong jets of water. However, they are not designed for submersion. Avoid exposing them to excessive moisture or liquids.

Troubleshooting

If you encounter any issues with your Ertuly T33 Sleep Earbuds, refer to the following common solutions:

ProblemPossible Solution
Earbuds not pairing
  1. Ensure earbuds are charged and in pairing mode (open case).
  2. Turn off and on Bluetooth on your device.
  3. Forget the device in your Bluetooth settings and try pairing again.
No sound or low volume
  1. Check device volume and earbud volume.
  2. Ensure earbuds are properly connected to your device.
  3. Clean any debris from the earbud speakers.
Earbuds uncomfortable or falling out
  1. Try different sized ear tips for a better fit.
  2. Ensure earbuds are inserted correctly with a gentle twist.
Sleep Mode not working as expected
  1. Ensure Sleep Mode is activated by tapping four times quickly.
  2. Confirm no accidental touches are occurring.
Charging issues
  1. Ensure the charging cable is securely connected.
  2. Try a different USB power adapter.
  3. Clean the charging contacts on the earbuds and case.

Specifications

FeatureDetail
Model Namesleepbuds-T33
BrandErtuly
Noise ControlActive Noise Cancellation (ANC), Transparency Mode
Connectivity TechnologyWireless (Bluetooth 6.0)
Bluetooth Range10 Meters
Audio Driver TypeDynamic Driver (13mm)
Charging Time1.5 Hours (for case)
Playtime (Earbuds)Up to 8 hours per charge
Total Playtime (with Case)Up to 48 hours
Water Resistance LevelIPX6 (Sweat-Resistant)
Control MethodTouch
MaterialPlastic
Item Weight2.89 ounces
Product Dimensions2.6 x 2.2 x 1.2 inches
Included Components1 x Charging Case, 1 x T33 Sleep Headphones Wireless Bluetooth, Cable, User Manual

Official Product Videos

Video: Ertuly noise cancelling earbuds for sleep. This video demonstrates the noise cancellation capabilities of the earbuds, ideal for a quiet sleep environment.

Video: Ertuly sleep headphones for side sleepers. This video highlights the comfortable design of the earbuds, specifically for users who sleep on their side.

Video: Ertuly sleep earbuds for side sleepers. A detailed look at the ergonomic fit and comfort features for side sleeping.

Video: Ertuly noise cancelling sleep headphones. This video showcases the overall noise-cancelling performance for various sleep scenarios.

Video: Ertuly sleeping headphones. A general overview of the earbuds' features and benefits for sleeping.

Warranty and Support

For warranty information and customer support, please refer to the contact details provided on the product packaging or the official Ertuly website. Keep your purchase receipt as proof of purchase for any warranty claims.

© 2026 Ertuly. All rights reserved.

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