AIHOOR A4ANC Wireless Earbuds User Manual

1. Introduction

The AIHOOR A4ANC Wireless Earbuds offer a premium audio experience with advanced features designed for daily use and active lifestyles. Key features include Hybrid Active Noise Cancelling, wireless charging capability, deep bass sound, and enhanced call clarity.

Figure 1: AIHOOR A4ANC Wireless Earbuds and Charging Case. The image shows the dark blue earbuds resting in their open charging case, highlighting their sleek design and compact form factor.

Key Features:

• Hybrid Active Noise Cancelling (ANC): Long press for 2 seconds to activate ANC, canceling ambient noise by 30dB for an immersive listening experience.
• Wireless Charging: Conveniently charge your earbuds and case wirelessly.
• Shocking Deep Bass: Expertly tuned sound delivering high-quality stereo with extra bass, rounded vocals, and surprising highs.
• Enhanced Calls: Six microphones with Environmental Noise Cancellation (ENC) technology ensure clear voice pickup.
• Universal Compatibility: Easily pair with iOS/Android phones, Mac or Windows laptops/desktops, or smart TVs via Bluetooth 5.1.

2. What's in the Box

• 1 x Pair of Bluetooth Earbuds (Left & Right)
• 1 x USB-C Charging Case
• 1 x USB-C Charging Cable (20cm/0.8in)
• 4 x Pairs of Eartips (L*2, M*2 (Installed), S*2, XS*2)
• 1 x Gift Carton Packaging

3. Setup

3.1 Charging the Earbuds and Case

Before first use, fully charge the earbuds and charging case. The case can be charged via the included USB-C cable or wirelessly using a compatible wireless charging pad.

• Earbuds Charging Time: Approximately 15 minutes for 5 hours of playtime (when placed in the charging case).
• Case Charging Time: Approximately 2 hours for a full charge.
• The charging case provides up to 3 full charges for the earbuds.

Figure 2: The AIHOOR A4ANC earbuds charging wirelessly on a charging pad, alongside a smartphone and smartwatch also charging. This illustrates the convenience of wireless charging for the earbuds.

3.2 Pairing with Your Device

The earbuds are designed for universal compatibility with various Bluetooth-enabled devices.

1. Ensure the earbuds are charged and placed in the charging case.
2. Open the charging case. The earbuds will automatically enter pairing mode (indicated by flashing lights on the earbuds).
3. On your device (smartphone, laptop, etc.), go to Bluetooth settings.
4. Select "AIHOOR A4" from the list of available devices to connect.
5. Once connected, you will hear an audio prompt, and the earbud lights will stop flashing.

Figure 3: The AIHOOR A4ANC earbuds demonstrating easy pairing with various devices including iPhones, Android phones, and laptops. This image highlights the broad compatibility of the earbuds.

4. Operating Instructions

4.1 Touch Controls

The AIHOOR A4ANC earbuds feature intuitive touch controls on each earbud for easy management of audio and calls.

• Play/Pause: Single tap either earbud.
• Next Track: Double tap the right earbud.
• Previous Track: Double tap the left earbud.
• Volume Up: Long press the right earbud.
• Volume Down: Long press the left earbud.
• Activate Voice Assistant (Siri/Google Assistant): Triple tap either earbud.

4.2 Call Management

The earbuds are equipped with 6 microphones and Environmental Noise Cancellation (ENC) for clear hands-free calls.

• Answer/End Call: Single tap either earbud.
• Reject Call: Long press either earbud for 2 seconds.

4.3 Active Noise Cancelling (ANC)

Activate ANC to minimize ambient noise and enhance your listening experience.

• Activate ANC: Long press either earbud for 2 seconds. You will hear an audio prompt confirming ANC activation.
• ANC reduces ambient noise by up to 30dB.

Figure 4: A visual representation of the earbuds' Active Noise Cancelling feature, showing a person enjoying quiet on an airplane. The image emphasizes the ability to reduce 35dB of ambient noise.

5. Maintenance

Proper maintenance ensures the longevity and optimal performance of your AIHOOR A4ANC earbuds.

• Cleaning: Regularly wipe the earbuds and charging case with a soft, dry, lint-free cloth. Avoid using harsh chemicals or abrasive materials.
• Eartips: Remove and clean the eartips periodically with water and mild soap. Ensure they are completely dry before reattaching.
• Water Resistance: The earbuds have an IPX5 water resistance level, meaning they are protected against low-pressure water jets from any direction. They are not designed for submersion in water. Avoid exposing them to excessive moisture or liquids.
• Storage: When not in use, store the earbuds in their charging case to protect them and keep them charged.

6. Troubleshooting

6.1 Connectivity Issues

• Earbuds not pairing: Ensure both earbuds are in the charging case, then open the lid to activate pairing mode. Check your device's Bluetooth settings to ensure "AIHOOR A4" is visible.
• Only one earbud connecting: Place both earbuds back into the charging case, close the lid, wait a few seconds, then open it again. This often resets the connection. If the issue persists, try forgetting the device on your phone's Bluetooth settings and re-pairing.
• Intermittent connection: Ensure your device is within the Bluetooth range (10 meters/33 feet) and there are no significant obstacles between the earbuds and your device.

6.2 Charging Problems

• Earbuds not charging in case: Ensure the charging contacts on both the earbuds and inside the case are clean and free of debris. Make sure the earbuds are properly seated in the case.
• Case not charging: Verify the USB-C cable is securely connected to both the case and the power source. If using wireless charging, ensure the case is correctly positioned on the charging pad.

6.3 Sound Quality Issues

• Low volume or poor sound: Ensure the eartips are the correct size for a snug fit in your ear canal. Clean the earbud mesh to remove any wax or debris that might be obstructing sound. Adjust volume on both your device and the earbuds.
• Distorted audio: Move closer to your connected device to avoid interference. Try disconnecting and reconnecting the earbuds.

7. Specifications

8. Warranty and Support

AIHOOR products are designed with quality and reliability in mind. For warranty information, technical support, or any inquiries regarding your AIHOOR A4ANC Wireless Earbuds, please refer to the contact information provided in your product packaging or visit the official AIHOOR website.

Note: Specific warranty terms and conditions may vary by region. Please retain your proof of purchase for warranty claims.