Astrum A10536-B

Astrum ANC True Wireless Bluetooth Earbuds

Model: ET360 (A10536-B)

1. Introduction

Thank you for choosing the Astrum ANC True Wireless Bluetooth Earbuds. This manual provides detailed instructions on how to set up, operate, and maintain your earbuds to ensure optimal performance and longevity. Please read this manual carefully before using the product.

2. Package Contents

  • Astrum ANC True Wireless Bluetooth Earbuds (Left and Right)
  • Charging Case
  • USB Charging Cable
  • User Manual
  • Multiple sizes of ear tips (S, M, L)

3. Product Overview

Familiarize yourself with the components of your Astrum earbuds and charging case.

Astrum ANC True Wireless Bluetooth Earbuds in open charging case

Figure 3.1: Earbuds placed inside the open charging case, showing the charging contacts and LED indicators.

Individual Astrum ANC True Wireless Bluetooth Earbuds

Figure 3.2: Close-up view of the individual left and right earbuds, highlighting their ergonomic design and touch control areas.

4. Charging Your Earbuds and Case

The charging case has an internal battery that can charge the earbuds multiple times. Ensure both the earbuds and the case are fully charged before first use.

4.1 Charging the Earbuds

  1. Place the earbuds into their respective slots in the charging case. Ensure the charging contacts align.
  2. The LED indicators on the earbuds will light up to show they are charging. They will turn off or change color when fully charged.

4.2 Charging the Charging Case

  1. Connect the USB charging cable to the charging port on the case.
  2. Connect the other end of the cable to a USB power adapter (not included) or a computer's USB port.
  3. The indicator lights on the charging case will show the charging status.

A full charge provides approximately 7 hours of playtime for the earbuds, with the charging case extending total playtime to 35 hours.

Astrum earbuds and case showing 35 hours total playtime

Figure 4.1: Visual representation of the extended battery life, indicating 35 hours total playtime with the charging case and 7 hours playtime per single charge.

5. Setup and Pairing

Follow these steps to pair your earbuds with your device.

5.1 Initial Pairing

  1. Ensure the earbuds are charged and placed in the charging case.
  2. Open the charging case. The earbuds will automatically enter pairing mode, and their indicator lights will flash.
  3. On your device (smartphone, tablet, computer), enable Bluetooth.
  4. Search for new Bluetooth devices. Select "Astrum ET360" from the list of available devices.
  5. Once connected, the earbud indicator lights will stop flashing. You will hear a confirmation tone.

The earbuds utilize Bluetooth 5.3 for a stable and instant connection.

Astrum earbuds with Bluetooth 5.3 connectivity

Figure 5.1: Depiction of seamless Bluetooth 5.3 connectivity, ensuring a stable and instant connection for the earbuds.

5.2 Reconnecting

The earbuds will automatically reconnect to the last paired device when taken out of the charging case and Bluetooth is enabled on the device.

6. Operating Your Earbuds

The Astrum ET360 earbuds feature touch controls for various functions.

6.1 Music Playback

  • Play/Pause: Single tap on either earbud.
  • Next Track: Double tap on the right earbud.
  • Previous Track: Double tap on the left earbud.
  • Volume Up: Triple tap on the right earbud.
  • Volume Down: Triple tap on the left earbud.

6.2 Call Management

  • Answer/End Call: Single tap on either earbud.
  • Reject Call: Press and hold either earbud for 2 seconds.

6.3 Active Noise Cancellation (ANC)

The earbuds feature Active Noise Cancellation (ANC) for an immersive audio experience and clear calls via HD dual mics.

  • Toggle ANC/Transparency Mode: Press and hold the touch area on the left earbud for 2 seconds.
Astrum earbuds with Hybrid Noise Cancellation

Figure 6.1: Illustration demonstrating the effect of Hybrid Noise Cancellation (ANC) on the earbuds, showing noise reduction before and after activation.

6.4 Voice Assistant (Siri)

  • Activate Voice Assistant: Press and hold the touch area on the right earbud for 2 seconds.

6.5 Sound Quality

The earbuds are equipped with 13mm dynamic drivers for excellent sound quality, providing immersive sound and deep bass.

Astrum earbuds with 13mm dynamic drivers for excellent sound quality

Figure 6.2: Visual highlighting the 13mm dynamic drivers within the earbuds, emphasizing their contribution to excellent sound quality and deep bass.

7. Maintenance and Care

Proper care will extend the life of your earbuds.

  • Clean the earbuds and charging case regularly with a soft, dry, lint-free cloth.
  • Do not use abrasive cleaners or solvents.
  • Keep the charging contacts clean and free of debris.
  • Store the earbuds in their charging case when not in use to protect them and keep them charged.
  • Avoid exposing the earbuds to extreme temperatures, humidity, or liquids.

8. Troubleshooting

If you encounter issues with your earbuds, refer to the following common solutions.

ProblemPossible CauseSolution
Earbuds not pairing/connectingBluetooth off on device, earbuds not in pairing mode, interference, previously paired device issue.
  • Ensure Bluetooth is enabled on your device.
  • Place earbuds in case, close, then open to re-enter pairing mode.
  • Forget "Astrum ET360" from your device's Bluetooth list and re-pair.
  • Ensure earbuds are charged.
No sound or low volumeVolume too low, earbuds not properly seated, connection issue.
  • Adjust volume on both earbuds and connected device.
  • Ensure earbuds are properly connected.
  • Clean earbud mesh if blocked.
Charging issuesDirty contacts, faulty cable/adapter, case battery low.
  • Clean charging contacts on earbuds and case.
  • Try a different USB cable and power adapter.
  • Ensure the charging case itself is charged.
ANC not effectiveImproper fit, environmental noise too high.
  • Ensure a snug fit with the correct ear tip size.
  • ANC is most effective against low-frequency, constant noise.

9. Specifications

FeatureDetail
Model NumberA10536-B
BrandAstrum
Connectivity TechnologyBluetooth 5.3 (Wireless)
Noise ControlActive Noise Cancellation (ANC)
Headphones Form FactorIn Ear
Ear PlacementIn Ear
Control TypeSiri (Voice Assistant)
MaterialPlastic
Product Dimensions6.1 x 4.8 x 2.6 cm; 50 g
Batteries3 Lithium Polymer batteries required (included)
ManufacturerASTRUM

10. Warranty and Support

Astrum products are designed and manufactured to the highest quality standards. For warranty information and technical support, please refer to the warranty card included in your package or visit the official Astrum website. Keep your proof of purchase for warranty claims.

For further assistance, please contact Astrum customer service.

© 2023 Astrum. All rights reserved.

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.

After a successful submission, we securely hash the supplied account or form email before sending it to Microsoft Advertising for conversion attribution. Privacy details.