Introduction
The Btootos A90 Pro Wireless Earbuds are designed to provide a superior audio experience with advanced features and comfortable wear. This manual will guide you through the essential steps to maximize your earbuds' potential.
Key Features:
- 2025 Bluetooth 5.4 Technology: Ensures faster, more stable signal transmission with low latency and a range of up to 15m. Automatic pairing and multi-device compatibility.
- Outstanding ENC Noise Reduction: Dual 14.2mm low-distortion composite dynamic drivers with AAC&SBC audio coding technology and ENC calling noise cancellation for clear sound.
- LED Power Display: Convenient display on the charging case shows charge levels for both the case and earbuds.
- Extended Battery Life: Up to 6-8 hours of usage on a single charge, with the charging case providing up to 30 additional hours (total 36 hours). Features Type-C fast charging.
- Ergonomic IP7 Waterproof Design: Ultra-light Nano coating for IP7 waterproof grade, dust and rain proof. Comfortable in-ear design with soft silicone ear caps.
What's in the Box
Ensure all items are present upon unboxing:
- A90 Pro Wireless Earbuds (L/R)
- Portable Charging Box
- USB-C Charging Cable
- Silicone Earplugs (S / M / L)
- User Manual
Setup Guide
1. Charging the Earbuds and Case
Before first use, fully charge your earbuds and charging case.
- Connect the provided USB-C charging cable to the charging port on the case.
- Connect the other end of the cable to a compatible USB power source.
- The LED display on the charging case will show the current battery level. Allow approximately 1.5 hours for a full charge of the case.
- Place the earbuds into the charging case. The earbuds will charge automatically.
2. Pairing with Your Device
The A90 Pro earbuds feature one-step automatic pairing.
- Open the charging case. The earbuds will automatically power on and enter pairing mode (indicated by flashing lights on the earbuds).
- On your device (smartphone, tablet, laptop), enable Bluetooth.
- Search for "A90 Pro" in the list of available Bluetooth devices and select it to connect.
- Once connected, you will hear a voice prompt, and the earbuds' indicator lights will turn off.
Operating Instructions
The A90 Pro earbuds utilize touch controls for easy management of calls and music.
Touch Controls:
| Function | Action |
|---|---|
| Play/Pause | Tap once on either earbud |
| Next Track | Quickly tap right earbud three times |
| Previous Track | Quickly tap left earbud three times |
| Answer Call | Tap once on either earbud |
| End Call | Tap once on either earbud |
| Reject Call | Press and hold either earbud for 2 seconds |
| Activate Voice Assistant | Tap twice on either earbud |
| Volume Up | Single tap on right earbud |
| Volume Down | Single tap on left earbud |
Maintenance
Cleaning:
Regular cleaning ensures optimal performance and hygiene.
- Gently wipe the earbuds and charging case with a soft, dry, lint-free cloth.
- Remove ear tips and clean any earwax or debris from the earbud nozzles using a small brush or cotton swab.
- Ensure charging contacts on both earbuds and case are clean and dry.
Water Resistance (IP7):
The earbuds are IP7 waterproof, meaning they are protected against immersion in water up to 1 meter for up to 30 minutes. They are resistant to sweat and rain, making them suitable for sports and outdoor activities.
- Do not intentionally submerge the earbuds in water for extended periods.
- After exposure to sweat or water, ensure the earbuds are completely dry before placing them back in the charging case to prevent damage.
Troubleshooting
Common Issues and Solutions:
- Earbuds not pairing: Ensure earbuds are charged. Turn off and on Bluetooth on your device. Try resetting the earbuds (refer to the user manual for specific reset instructions).
- No sound from one earbud: Place both earbuds back in the charging case, close the lid, wait a few seconds, then open and try again. Ensure both earbuds are connected to your device.
- Low volume or poor sound quality: Clean the earbud nozzles and ear tips. Adjust volume on both your device and the earbuds. Ensure a stable Bluetooth connection.
- Charging issues: Clean the charging contacts on both the earbuds and the case. Ensure the USB-C cable and power source are working correctly.
Specifications
| Feature | Detail |
|---|---|
| Model Name | A90 Pro |
| Brand | Btootos |
| Connectivity Technology | Wireless (Bluetooth 5.4) |
| Bluetooth Range | Up to 15 meters |
| Audio Driver Size | 14.2 Millimeters |
| Noise Control | Passive Noise Cancellation, Sound Isolation (ENC Call Noise Reduction) |
| Playtime (Earbuds) | 6-8 hours |
| Playtime (with Charging Case) | Up to 36 hours |
| Charging Time (Case) | 1.5 hours |
| Charging Port | USB-C |
| Water Resistance Level | IP7 Waterproof |
| Control Type | Touch Control |
| Ear Placement | In Ear |
| Item Weight | 3.52 ounces |
Warranty & Support
For warranty information and technical support, please refer to the official Btootos website or contact their customer service directly. Keep your purchase receipt for warranty claims.
Online Support: Visit the Btootos Store on Amazon
