Btootos A90 PRO Wireless Earbuds User Manual

Introduction

Thank you for choosing the Btootos A90 PRO Wireless Earbuds. These earbuds are designed to provide a superior audio experience with advanced features such as Bluetooth 5.4 technology for stable connections, Environmental Noise Cancelling (ENC) for clear calls, and IP7 waterproofing for durability. This manual will guide you through the setup, operation, maintenance, and troubleshooting of your new earbuds to ensure optimal performance and longevity.

Package Contents

Please verify that all items listed below are included in your package:

• A90 Pro Wireless Earbuds (L/R)
• Portable Charging Box
• USB-C Charging Cable
• Silicone Earplugs (S / M / L sizes)
• User Manual

Product Overview

The Btootos A90 PRO Wireless Earbuds feature an ergonomic design for comfortable wear and a charging case with an LED display for convenient battery monitoring. The earbuds are equipped with 14.2mm dynamic drivers for clear sound and an ENC noise-cancelling microphone for enhanced call quality.

Image: The Btootos A90 PRO Rose Gold Wireless Earbuds in their charging case, showcasing the LED battery display.

Image: Detailed view of the earbud's internal 14.2mm speaker and nano-scale material, designed for clear acoustic sound. Includes a note about three sizes of ear caps for ergonomic fit.

Image: Illustration highlighting the built-in ENC (Environmental Noise Cancelling) chip and noise-cancelling microphone within the earbud, indicating a 40dB noise reduction for clearer calls.

Image: Depiction of the earbuds and charging case, emphasizing Bluetooth 5.4 technology for solid connection, strong signal, and reduced power consumption.

Image: Close-up of the charging case's digital LED display, showing the remaining power percentage for the case and individual battery levels for the left and right earbuds.

Specifications

Setup

1. Charging the Earbuds and Case

Before first use, fully charge the earbuds and the charging case. Connect the provided USB-C charging cable to the charging port on the case and plug the other end into a compatible USB power source (e.g., wall adapter, computer USB port). The LED display on the charging case will show the current battery level of the case and the individual earbuds.

Image: The charging case connected via USB-C cable, illustrating the fast charge capability and indicating over 36 hours of total playtime (6-8 hours on a single earbud charge).

2. Pairing with Your Device

1. Initial Pairing: Open the charging case. The earbuds will automatically power on and enter pairing mode.
2. Enable Bluetooth: On your device (smartphone, tablet, laptop), go to the Bluetooth settings and turn on Bluetooth.
3. Select Device: Look for "A90 PRO" in the list of available devices and select it to connect. You will hear a confirmation tone once connected.
4. Automatic Reconnection: After the initial pairing, the earbuds will automatically connect to the last paired device when taken out of the charging case, provided Bluetooth is enabled on your device.

Image: Visual guide demonstrating the one-step pairing process: simply open the case to auto power on and connect, or close it to power off and charge.

Operating Instructions

Touch Controls

The Btootos A90 PRO earbuds feature intuitive touch controls on each earbud. Refer to the table below for common functions:

Single & Dual Earbud Mode

You can use either the left or right earbud independently for mono audio, or both together for a stereo experience. Simply take one earbud out of the case to use it alone, or both for dual mode. The earbuds will automatically switch between modes.

Maintenance

Cleaning

Regular cleaning helps maintain sound quality and hygiene:

• Use a soft, dry, lint-free cloth to wipe the earbuds and charging case.
• Gently remove any earwax or debris from the earbud tips and speaker mesh using a small, soft brush or cotton swab.
• Do not use abrasive cleaners, alcohol, or chemical sprays.

Waterproofing (IP7)

The earbuds are IP7 waterproof, meaning they are protected against temporary immersion in water (up to 1 meter for 30 minutes). This makes them suitable for sports and protection against sweat and rain. However, they are not designed for swimming or prolonged submersion. Ensure the earbuds are dry before placing them back in the charging case to prevent damage.

Image: An illustration emphasizing the IP7 waterproofing feature, showing earbuds with water droplets, indicating resistance to sweat and rain.

Battery Care

To maximize battery lifespan:

• Avoid fully discharging the battery frequently.
• Store the earbuds and case in a cool, dry place when not in use.
• Charge the case regularly, even if not using the earbuds daily.

Troubleshooting

If you encounter any issues with your earbuds, please refer to the following common problems and solutions:

Warranty and Support

Btootos products come with a standard manufacturer's warranty. For detailed warranty information, technical support, or service inquiries, please refer to the contact information provided on the product packaging or visit the official Btootos website. Please retain your proof of purchase for warranty claims.

Safety Information

Please read and follow these safety guidelines to prevent damage to your earbuds or personal injury:

• Do not disassemble, repair, or modify the product.
• Keep the earbuds and charging case away from extreme temperatures, direct sunlight, and open flames.
• Avoid exposing the product to corrosive liquids.
• Do not use the earbuds at excessively high volumes for prolonged periods to prevent hearing damage.
• Dispose of the product responsibly according to local regulations. Do not dispose of with household waste.