Introduction
Thank you for choosing the Aigo TA51 True Wireless Earphones. These in-ear earphones feature Bluetooth 5.4 for stable connectivity, 10mm dynamic drivers for high-definition sound, and active noise cancellation (ANC) for an immersive audio experience. Designed for comfort and durability, they are suitable for various activities including gaming, sports, and mobile phone use. This manual provides detailed instructions on how to set up, operate, and maintain your earphones.
Package Contents
Please check the box for the following items:
- Aigo TA51 True Wireless Earphones (Left and Right)
- Charging Case
- USB-C Charging Cable
- User Manual
Specifications

Image: Aigo TA51 Product Parameters
| Feature | Specification |
|---|---|
| Product Model | TA51 |
| Bluetooth Version | Bluetooth 5.4 |
| Music Playback Time | Approx. 6.5 hours (at 30% volume) |
| Charging Case Battery Capacity | 300mAh |
| Charging Voltage/Current | DC 5V, 500mA |
| Audio Decoding | SBC/AAC |
| Speaker | 2x Φ10mm, 32Ω ± 10% |
| Paired Name | aigo TA51 |
| Charging Time of Case | Approx. 2 hours |
| Call Time | Approx. 3 hours |
| Earphone Body Battery | 3.7V 40mAh * 2 |
| Transmission Distance | 10m/Class 2 |
| Supporting Protocols | HSP/HFP/A2DP/AVRCP |
| Operating Temperature | -10 to 40 °C |
| Material | Plastic, Silica Gel |
| Weight | 91g |
| Waterproof | Yes |
| Active Noise-Cancellation | Yes |
| Voice Assistant Built-in | No (Support for launching via touch control) |
Note: Due to minor differences in electronic components, product parameters may vary slightly. Please refer to the actual product for accuracy. Playback time is tested at 30% volume. Total battery life with charging case is up to 39 hours.
Setup
1. Charging the Earphones and Case
Before first use, fully charge the earphones and the charging case.
- Place both earphones into the charging case.
- Connect the USB-C charging cable to the charging port on the case and plug the other end into a USB power adapter (not included) or a computer's USB port.
- The charging indicator on the case will show charging status. A full charge for the case takes approximately 2 hours.
- Once fully charged, disconnect the charging cable. The earphones will charge automatically when placed in the case.

Image: USB-C Charging Port

Image: Battery Life Overview
2. Bluetooth Pairing
The earphones use Bluetooth 5.4 for a stable and fast connection.
- Open the charging case. The earphones will automatically enter pairing mode (if this is the first time or if they are not connected to any device).
- On your device (smartphone, tablet, etc.), enable Bluetooth.
- Search for "aigo TA51" in the list of available Bluetooth devices and select it to connect.
- Once connected, you will hear a confirmation tone, and the earphones will be ready for use.
- The earphones will automatically reconnect to the last paired device when taken out of the case, if Bluetooth is enabled on the device.

Image: Bluetooth 5.4 Technology
Operating Instructions
Touch Controls
The Aigo TA51 earphones feature intuitive touch controls on each earbud.

Image: Touch Control Functions
- Single Click on Touch Area:
- Answer an incoming call
- Hang up an active call
- Play/Pause music playback
- Double Click on Touch Area:
- Reject an incoming call
- Skip to the next song
- Three Clicks on Touch Area:
- Go back to the previous song
- Long Press for 2 Seconds on Touch Area:
- Launch your device's voice assistant (e.g., Siri, Google Assistant)
Making and Receiving Calls
The earphones are equipped with an HD microphone for clear communication.
- To answer a call, single-click either earbud.
- To end a call, single-click either earbud.
- To reject an incoming call, double-click either earbud.

Image: HD Microphone for Clearer Calls
Music Playback
Enjoy high-definition sound with the 10mm dynamic drivers.
- To play or pause music, single-click either earbud.
- To skip to the next song, double-click either earbud.
- To go back to the previous song, triple-click either earbud.

Image: 10mm Dynamic Driver
Active Noise Cancellation (ANC)
The Aigo TA51 earphones feature Active Noise Cancellation to reduce ambient noise. The method to activate/deactivate ANC is typically via a long press or specific tap sequence, but this is not explicitly detailed in the provided images. Please refer to the quick start guide included in your package for specific ANC control instructions.
Maintenance
- Cleaning: Regularly clean the earphones and charging case with a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials.
- Storage: When not in use, store the earphones in their charging case to protect them from dust and damage.
- Water Resistance: The earphones are waterproof. However, avoid prolonged exposure to water and do not submerge them. Ensure they are dry before placing them back in the charging case to prevent damage to the charging contacts.
- Battery Care: To prolong battery life, avoid fully discharging the earphones and charging case frequently. Charge them regularly, even if not in constant use.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| Earphones not pairing |
|
| No sound from earphones |
|
| Charging case not charging |
|
| Poor call quality |
|
User Tips
- Comfortable Fit: The earphones feature an ergonomic design for a stable and comfortable fit. Experiment with different ear tip sizes (if provided, though not explicitly listed in package contents) to find the best seal for optimal sound quality and noise isolation.
- Battery Management: For extended listening sessions, remember the charging case provides multiple recharges, extending total usage time up to 39 hours. Keep the case charged for on-the-go power.
- Touch Control Practice: Familiarize yourself with the touch controls for seamless management of calls, music, and voice assistant without needing to access your device.

Image: Ergonomic Design for Comfortable Wear
Warranty and Support
Aigo products are designed and manufactured to the highest quality standards. For warranty information, technical support, or service inquiries, please refer to the warranty card included in your package or contact your retailer. Keep your proof of purchase for warranty claims.