1. Introduction
Thank you for choosing WHYKJTEK Wireless Earbuds. This manual provides detailed instructions on how to set up, operate, and maintain your earbuds to ensure optimal performance and longevity. Please read this manual thoroughly before using the product.
2. Package Contents
Please check the package for the following items:
- Wireless Earbuds (Left and Right)
- Charging Case
- USB-C Charging Cable
- Ear Tips (S/M/L sizes)
- User Manual
3. Product Overview
The WHYKJTEK Wireless Earbuds are designed for superior audio experience and convenience. They feature a compact design, an LED power display on the charging case, and touch controls for easy operation.

Image: The WHYKJTEK Wireless Earbuds securely placed within their charging case, showcasing the digital LED display on the front of the case indicating battery levels for both earbuds and the case itself.

Image: Visual representation of the compact size of the earbuds and charging case, with dimensions indicated in millimeters and inches, alongside a US dime for scale, highlighting their portability.
4. Setup
4.1 Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case. The charging case features a dual LED power display to show the battery percentage of the case and the charging status of each earbud.
- Place the earbuds into the charging case. Ensure they are correctly seated.
- Connect the USB-C charging cable to the charging port on the case and plug the other end into a USB power source.
- The LED display will show the charging progress. A full charge for the case takes approximately 1.5 hours.
- Each earbud provides 6-8 hours of playtime on a single charge, and the charging case extends total playtime to up to 50 hours.

Image: The charging case with its LED display showing the power percentage of the case and individual battery indicators for the left and right earbuds, illustrating the long battery life for all-day enjoyment.

Image: A graphic illustrating the impressive battery life, showing 8 hours of playtime per earbud charge and a total of 50 hours with the charging case, along with a 1.5-hour charge time for the case.
4.2 Pairing with Your Device
The earbuds utilize Bluetooth 5.4 for a fast and stable connection. They support HSP, HFP, A2DP, and AVRCP protocols.
- Open the charging case. The earbuds will automatically power on and enter pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth.
- Search for "A1 Pro" in the list of available Bluetooth devices and select it to connect.
- Once connected, the earbuds will automatically reconnect to your device when taken out of the case for future use.

Image: A visual guide demonstrating the one-step pairing process, showing the earbuds automatically connecting to a smartphone's Bluetooth settings upon opening the charging case.

Image: An illustration highlighting the wide compatibility of the earbuds with various Bluetooth-enabled devices, including notebooks, TVs, desktops, watches, phones, and tablets.
5. Operating Instructions
5.1 Wearing the Earbuds
The earbuds are ergonomically designed for a comfortable and secure fit. Choose the appropriate ear tip size (S/M/L) for the best audio experience and comfort.
- Gently insert the earbud into your ear canal.
- Rotate the earbud slightly until it feels snug and secure.
- Ensure the ear tip forms a good seal to optimize sound quality and noise cancellation.

Image: A visual demonstrating how the earbuds fit securely and comfortably in the ear, highlighting the ergonomic design that conforms to the ear structure and the availability of different size eartips for a customized fit.
5.2 Touch Controls
The earbuds feature intuitive touch controls on each earbud for managing audio playback, calls, and voice assistant activation.
| Action | Left Earbud (L) | Right Earbud (R) |
|---|---|---|
| Play/Pause | Double Tap | |
| Volume Up | Single Tap | |
| Volume Down | Single Tap | |
| Next Song | Long Press | |
| Previous Song | Long Press | |
| Answer Call | Long Press (L/R) | |
| Hang Up Call | Long Press (L/R) | |
| Activate Voice Assistant (Siri/Google Assistant) | Triple Tap (L/R) | |

Image: A detailed diagram illustrating the various touch control functions on the earbuds, including volume adjustment, track skipping, call management, and voice assistant activation.
5.3 Sound Quality and Noise Cancellation
The earbuds feature 14.2mm triple-layer diaphragm drivers for deep bass and clear high-mid frequencies. Equipped with four high-definition microphones, they offer ENC (Environmental Noise Cancellation) to reduce external noise by 60% and enhance vocal clarity by 85% during calls.

Image: A visual representing the immersive sound and spatial audio capabilities, highlighting the 13mm speakers and unique acoustic design that deliver deep bass, rich mids, and clear highs.

Image: A diagram illustrating the ENC (Environmental Noise Cancelling) technology, showing the placement of the ENC noise cancelling mic and main mic for talk, and a graph demonstrating the reduction of noise by 35dB.
6. Maintenance
Proper maintenance ensures the longevity and performance of your earbuds.
- Cleaning: Regularly clean the earbuds, especially the ear tips and charging contacts, with a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials.
- Water Resistance: The earbuds have an IPX7 waterproof rating, making them resistant to sweat, rain, and minor water splashes. However, they are not designed for swimming or prolonged submersion. Ensure the charging port is dry before charging.
- Storage: When not in use, store the earbuds in their charging case to protect them from dust and damage. Store in a cool, dry place away from extreme temperatures.
7. Troubleshooting
If you encounter any issues with your earbuds, please refer to the following common solutions:
- Earbuds not pairing:
- Ensure both earbuds are charged.
- Turn off Bluetooth on your device and turn it back on.
- Delete "A1 Pro" from your device's Bluetooth list and try pairing again.
- Place earbuds back in the case, close the lid, wait a few seconds, then open to reset.
- No sound from one earbud:
- Ensure both earbuds are charged and connected.
- Try resetting the earbuds by placing them in the case and then taking them out.
- Charging issues:
- Check if the charging cable is securely connected to both the case and the power source.
- Ensure the charging contacts on the earbuds and inside the case are clean and free of debris.
- Try a different USB-C cable or power adapter.
- Poor sound quality/intermittent connection:
- Ensure the earbuds are within the Bluetooth range of your device (typically 10 meters/33 feet).
- Reduce interference by moving away from other electronic devices.
- Ensure ear tips provide a good seal in your ear.
8. Specifications
| Feature | Description |
|---|---|
| Model Name | A1 |
| Connectivity Technology | Wireless (Bluetooth 5.4) |
| Wireless Communication Technology | Bluetooth |
| Included Components | Cable |
| Material | Plastic |
| Specific Uses For Product | Sport, Everyday Use |
| Charging Time | 1.5 Hours (Case) |
| Compatible Devices | Smartphones, TVs, Computers, Laptops |
| Water Resistance Level | IPX7 Waterproof |
| Frequency Range | 20 Hz - Unknown |
| Unit Count | 2.0 Count (Earbuds) |
| Control Method | Touch |
| Number of Items | 1 (Set) |
| Controller Type | Touch Control |
| Battery Life | 7 Hours (Earbuds), 50 Hours (with Case) |
| Audio Driver Type | Dynamic Driver |
| Bluetooth Version | 5.4 |
| Earpiece Shape | In-ear |
| Manufacturer | WHYKJTEK |
| Item Weight | 3.87 ounces |
| Color | Glossy Black |
| Ear Placement | In Ear |
| Form Factor | On Ear |
| Headphones Jack | No Jack |
9. Warranty and Support
WHYKJTEK products come with a standard manufacturer's warranty. For specific warranty details, please refer to the warranty card included in your package or contact WHYKJTEK customer support.
If you require further assistance or have questions not covered in this manual, please contact our customer support team through the retailer's platform or the official WHYKJTEK website. Please have your product model (A1) and purchase information ready when contacting support.





