Introduction
Thank you for choosing the Btootos A90 Pro Wireless Earbuds. These earbuds feature advanced Bluetooth 5.4 technology for stable connectivity, ENC noise cancellation for clear calls, intuitive touch controls, and an IPX7 waterproof rating. Designed for comfort and extended use, they offer up to 40 hours of playtime with the charging case. Please read this manual carefully to ensure proper use and to maximize your listening experience.
Package Contents
Before you begin, please check the package for the following items:
- A90 Pro Wireless Earphones (L/R)
- Portable Charging Case
- USB-C Charging Cable
- Silicone Eartips (S/M/L sizes)
- User Manual
Image: All items included in the Btootos A90 Pro package.
Product Overview
Earbud Components
- Speaker: 14.2mm dynamic drivers for rich audio.
- Microphone: Integrated for calls, with ENC noise cancellation.
- Touch Control Area: For managing playback, calls, and voice assistant.
Image: Detailed view of the earbud's internal speaker for clear acoustic sound.
Image: Earbud diagram illustrating the ENC noise reduction chip and microphone for improved call clarity.
Charging Case Components
- LED Digital Display: Shows battery percentage of the case and individual earbuds.
- USB-C Charging Port: For fast charging the case.
Image: The charging case and earbuds, highlighting the Bluetooth 5.4 chip for stable connection.
Charging
To ensure optimal performance, fully charge your earbuds and charging case before first use.
Charging the Earbuds
- Place the earbuds into the charging case. Ensure they are correctly seated in their respective slots (L for left, R for right).
- Close the charging case lid. The earbuds will begin charging automatically.
Charging the 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 USB power adapter (not included) or a computer's USB port.
- The LED digital display on the case will show the current battery percentage during charging.
A full charge for the case takes approximately 1.5 hours. The earbuds provide 6-8 hours of playback on a single charge, and the charging case extends total playtime to up to 40 hours. A quick 10-minute charge can provide approximately 1 hour of playback.
Image: The digital LED display on the charging case clearly indicates the remaining battery for both the case and individual earbuds.
Image: Visual representation of the extended battery life and fast charging capability.
Pairing
First-Time Pairing
- Open the charging case. The earbuds will automatically power on and enter pairing mode.
- Enable Bluetooth on your device (smartphone, tablet, etc.).
- Search for "A90 Pro" in the list of available Bluetooth devices and select it to connect.
- Once connected, you will hear a confirmation tone, and the earbuds are ready for use.
Automatic Re-connection
After the initial pairing, the earbuds will automatically connect to the last paired device when you open the charging case and take them out. This eliminates the need for repeated manual pairing.
Image: Visual guide for the quick and easy one-step pairing process.
Wearing the Earbuds
For the best audio experience and secure fit, choose the correct size of silicone eartips and wear the earbuds properly.
- Select the eartips (S/M/L) that provide a comfortable and snug fit in your ear canal.
- Gently insert each earbud into your ear, twisting slightly until it feels secure and comfortable.
- Ensure the microphone is pointing towards your mouth for optimal call clarity.
Image: Example of a person wearing the Btootos A90 Pro earbud for a comfortable and secure fit.
Touch Controls
The Btootos A90 Pro earbuds feature intuitive touch controls for easy management of music and calls.
| Action | Function |
|---|---|
| Single Tap (L/R) | Play/Pause Music, Answer/End Call |
| Double Tap (Right Earbud) | Next Track |
| Double Tap (Left Earbud) | Previous Track |
| Triple Tap (Right Earbud) | Volume Up |
| Triple Tap (Left Earbud) | Volume Down |
| Long Press (L/R, 2 seconds) | Reject Call, Activate Voice Assistant |
| Long Press (L/R, 5 seconds) | Power On/Off |
Image: Visual guide to the various touch control functions.
Maintenance
Proper maintenance will extend the lifespan of your earbuds.
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
- Eartips: Remove and clean the silicone eartips with water and mild soap if necessary. Ensure they are completely dry before reattaching.
- Water Resistance: The earbuds are IPX7 waterproof, meaning they can withstand sweat and splashes. They are suitable for workouts and light rain. Do not submerge them in water or expose them to strong jets of water. Ensure the charging port is dry before charging.
- Storage: Store the earbuds in their charging case when not in use to protect them and keep them charged.
Image: The earbuds demonstrating their IPX7 waterproof capability, resistant to sweat and splashes.
Troubleshooting
If you encounter any issues with your Btootos A90 Pro earbuds, please refer to the following common problems and solutions:
| Problem | Solution |
|---|---|
| Earbuds not pairing/connecting | Ensure earbuds are charged. Turn off and on your device's Bluetooth. Forget "A90 Pro" from your device's Bluetooth list and re-pair. Place earbuds back in case, close, then reopen to reset. |
| No sound from one earbud | Ensure both earbuds are charged. Try placing both earbuds back in the case, closing it, and then taking them out again. Re-pair if necessary. |
| Charging case not charging | Check the USB-C cable and power adapter. Ensure the cable is securely connected to both the case and the power source. |
| Low volume | Adjust the volume on both your connected device and using the earbud touch controls. Ensure eartips provide a good seal. |
| Call quality issues | Ensure the microphone is not obstructed. Move closer to your connected device to improve signal strength. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | A90 Pro |
| Brand | Btootos |
| Connectivity Technology | Wireless (Bluetooth 5.4) |
| Ear Placement | In-ear |
| Headphone Form Factor | In-ear |
| Noise Control | Passive Noise Cancelling, Sound Isolation (ENC for calls) |
| Impedance | 32 Ohm |
| Continuous Playback Time | Up to 40 Hours (with charging case) |
| Earbud Playback Time | 6-8 Hours (single charge) |
| Charging Time | Approx. 1.5 Hours (for charging case) |
| Water Resistance Level | IPX7 Waterproof |
| Control Type | Touch Control |
| Material | Silicone (eartips) |
| Eartip Sizes | S/M/L |
| Package Dimensions | 9 x 8.2 x 3.4 cm; 90 g |
| Recommended Uses | Exercise, Cycling, Running, Indoor Use, Calls |
| Compatible Devices | IPhone (17, 16, 15, 14, 13, 12, 11, XS Max, XS, XR, X, 8, 7), Apple Watch, iPad Pro, iPad Air 2, iPad Air, iPad mini 4, iPad mini 2; Samsung Galaxy (S8 & S8+, S6 edge, S6, Note5, Note 4, Note 3); Moto X, Moto G, Moto E, DROID Turbo 2, DROID Maxx 2; SONY Xperia (X Performance, X, XA, Z5, Z5 Compact, C4, M4 Aqua, Z3, Z4 Tablet, Z3 Tablet Compact, Z2 Tablet); Xiaomi (6, 5s, 5); Huawei (mate9, mate8, P10, P8, mate30, mate40); OnePlus one, LG. Compatible with almost all Bluetooth devices. |
Warranty and Support
Btootos is committed to providing high-quality products and excellent customer satisfaction. While specific warranty details are not provided in this manual, please retain your proof of purchase. For any product inquiries, technical support, or warranty claims, please contact the retailer or Btootos customer service through the contact information provided at the point of purchase or on the official Btootos website.
