Introduction
Thank you for choosing the Kinglucky A20 Dual Pair True Wireless Earphones. These earphones offer a versatile listening experience with two distinct pairs of earbuds (in-ear and ear-clip styles), advanced Bluetooth 5.3 connectivity, and an impressive 76-hour total battery life by swapping between the pairs. This manual provides essential information for setup, operation, maintenance, and troubleshooting to ensure optimal performance.

Setup
1. Charging the Earphones and Case
The Kinglucky A20 comes with two pairs of earphones and a charging case. Before first use, ensure both pairs of earphones and the charging case are fully charged.
- Place the earphones into the charging case.
- Connect the charging case to a power source using a compatible USB cable.
- The indicator lights on the case will show charging status.
The dual earphone system allows for extended use, with up to 8 hours of playback per pair on a single charge, and a total of up to 76 hours when utilizing both pairs with the fully charged case.

2. Pairing with a Device
- Ensure the earphones are charged and placed in the charging case.
- Open the charging case. The earphones will automatically enter pairing mode (indicated by flashing lights, if available).
- On your device (smartphone, tablet, etc.), enable Bluetooth.
- Search for "Kinglucky A20" in the list of available Bluetooth devices and select it to connect.
- Once connected, the earphones will indicate successful pairing (e.g., a voice prompt or steady light).
The A20 earphones feature "Flash connection 6.0 technology" for quick and stable pairing. They also support "one-step pick and place" for automatic connection to the last paired device when removed from the case.
3. Wearing the Earphones
The Kinglucky A20 provides flexibility with two distinct pairs of earbuds: a traditional in-ear type and a secure ear-clip type. You can switch between these pairs based on your preference and activity.
- In-ear Type: Insert the earbud gently into your ear canal.
- Ear-clip Type: Position the ear-clip securely around your ear for a stable fit, ideal for sports.
To switch between the in-ear and ear-clip pairs, simply remove the current pair and insert the desired pair into the charging case. The case is designed to accommodate both styles.

Operating Instructions
1. Basic Functions
- Power On/Off: Earphones power on automatically when removed from the case and power off when placed back. When one pair's battery is depleted, you can swap it with the second charged pair from the case to continue listening.
- Volume Control: The earphones support volume control directly from your connected device. (Note: The earphones do not have a physical control button for this function).
- Answering/Ending Calls: Refer to your device's instructions for call management with connected Bluetooth earphones.
2. Sound Modes and Features
- Spatial Sound Effects: Immerse yourself in audio with enhanced spatial sound, offering both Music mode and Theater mode for different listening experiences.
- Thumping Bass: Enjoy rich, powerful bass output.
- AI Call Noise Reduction: The dual microphone system with AI noise reduction algorithm ensures clear calls, especially in outdoor environments, by intelligently separating human voice from background noise.
- Game Mode: Activate game mode for ultra-low latency (0.06s), providing a synchronized audio-visual experience for gaming.



Maintenance
1. Cleaning
- Gently wipe the earphones and charging case with a soft, dry, lint-free cloth.
- Do not use abrasive cleaners, alcohol, or chemical solvents.
- Ensure charging contacts are clean and free of debris.
2. Water Resistance
The Kinglucky A20 earphones are rated IPX5 waterproof, meaning they are resistant to a sustained, low-pressure water jet spray. This makes them suitable for workouts and light rain. However, they are not designed for submersion in water or exposure to high-pressure water jets.
- Do not intentionally submerge the earphones in water.
- Dry the earphones thoroughly before placing them back in the charging case to prevent damage to the charging contacts.

3. Storage
- Store the earphones in their charging case when not in use to protect them and keep them charged.
- Avoid extreme temperatures and humidity.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| Earphones not pairing |
|
| No sound or low volume |
|
| Charging issues |
|
| Call quality issues |
|
Specifications
| Feature | Detail |
|---|---|
| Brand | Kinglucky |
| Model | A20 |
| Communication | Wireless (Bluetooth 5.3) |
| Style | In-ear, Ear-clip type (Convertible) |
| Vocalism Principle | Dynamic |
| Material | ABS |
| Active Noise-Cancellation | No |
| Volume Control | Yes (via connected device) |
| Control Button | No |
| Single Earphone Pair Battery Life | Up to 8 hours |
| Total Battery Life (with two pairs and case) | Up to 76 hours |
| Waterproof Rating | IPX5 |
| Earbud Weight | 2.8g (each) |
| Low Latency (Game Mode) | 0.06s |
| Sound Features | Gold label acoustics, spatial sound effects, thumping bass, wide frequency crystal oscillator molecular diaphragm, dual crystal AI noise reduction, analog digital sound core chip, ACA acoustic cavity. |
| Connection Technology | Upgrade flash connection 6.0 |
User Tips
- Optimize Battery Life: The Kinglucky A20 includes two pairs of earphones. When one pair runs low on power, simply swap it with the second fully charged pair from the charging case to extend your listening time significantly, up to 76 hours.
- Choose Your Fit: Experiment with both the in-ear and ear-clip styles to find the most comfortable and secure fit for different activities. The ear-clip is generally recommended for active use, while the in-ear might offer better passive noise isolation.
- Enhance Audio Experience: Switch between Music mode and Theater mode to best suit your content, whether it's for casual listening or immersive movie watching.
- Gaming Advantage: Remember to activate game mode for critical gaming sessions to benefit from the ultra-low latency and gain a competitive edge.
- Clear Calls: For the best call quality, especially in noisy environments, ensure the microphones are unobstructed and try to face away from direct noise sources.

Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your proof of purchase for any warranty claims.





