1. Introduction
Thank you for choosing Aptkdoe HD65 Wireless Earbuds. These earbuds are designed to provide a superior audio experience with advanced Bluetooth 5.4 technology, deep bass stereo sound, and a comfortable, secure fit for various activities. This manual will guide you through the setup, operation, and maintenance of your new earbuds to ensure optimal performance and longevity.

Figure 1.1: Aptkdoe HD65 Wireless Earbuds in their charging case.
2. Package Contents
Please check the package for the following items:
- 2 x Wireless earbuds sport
- 1 x Fast Charging Case
- 1 x USB-C Charging Cable
- 3 x Pairs of Earplugs (S, M, L)
- 1 x Instruction Manual
3. Product Overview
3.1 Key Features
- Hi-Fi Deep Bass Stereo Sound: Equipped with 14.2mm large speaker drivers for powerful audio.
- ENC Noise Cancelling Mic: High-quality microphones for clear calls by reducing background noise.
- Extended Playtime: Up to 15 hours on a single charge, with a total of 75 hours using the portable charging case.
- Dual LED Display: Accurately shows the remaining power of the charging case and earbuds.
- Bluetooth 5.4 Technology: Provides instant pairing and stable, interruption-free transmission up to 33ft (10 meters).
- Sensitive Button Control: Manage music, calls, and voice assistance directly from the earbuds.
- Ergonomic Sports Design: Features ear hooks made of innovative TPU material for a secure and comfortable fit, ideal for workouts.
- IPX7 Waterproof: Nano-coated material protects against sweat and raindrops.
3.2 Components and Indicators

Figure 3.1: The charging case features a dual LED display indicating battery levels for both the case and individual earbuds.

Figure 3.2: Each earbud is equipped with a physical button for intuitive control of various functions.
4. Setup
4.1 Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case.
- Place the earbuds into the charging case. Ensure they are properly seated; the LED indicators on the case will show charging progress.
- Connect the USB-C charging cable to the charging port on the case and plug the other end into a compatible USB power source (e.g., wall adapter, computer USB port).
- The LED display on the charging case will show the battery percentage of the case and the charging status of each earbud.
- A full charge typically takes approximately 1.5 hours for the case.

Figure 4.1: Battery life indicators and charging time for the earbuds and case.
4.2 Pairing with Your Device
The earbuds feature one-step pairing for convenience.
- Ensure the earbuds are charged and placed inside the charging case.
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth.
- Search for available Bluetooth devices and select "HD65" from the list.
- Once connected, you will hear a confirmation tone, and the earbuds will be ready for use.
- The earbuds will automatically reconnect to the last paired device when removed from the case.

Figure 4.2: Bluetooth 5.4 ensures a stable connection and wide compatibility with various devices.
5. Operating the Earbuds
5.1 Music Control
| Action | Left Earbud (L) | Right Earbud (R) |
|---|---|---|
| Play/Pause | Single tap L/R | |
| Next Track | Double tap R | Double tap R |
| Previous Track | Double tap L | Double tap L |
| Volume Up | Long press (2s) R | Long press (2s) R |
| Volume Down | Long press (2s) L | Long press (2s) L |
5.2 Call Control
| Action | Left Earbud (L) | Right Earbud (R) |
|---|---|---|
| Answer Call | Single tap L/R | |
| End Call | Single tap L/R | |
| Reject Call | Long press (2s) L/R | |
5.3 Voice Assistant
To activate your device's voice assistant (e.g., Siri, Google Assistant), quick triple tap either the Left or Right earbud.
6. Maintenance
6.1 Cleaning
- Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth.
- Do not use abrasive cleaners, alcohol, or chemical sprays.
- Ensure charging contacts on both earbuds and case are clean and dry to prevent charging issues.
6.2 Water Resistance (IPX7)
The earbuds are IPX7 waterproof, meaning they can withstand immersion in water up to 1 meter for 30 minutes. However, this rating does not apply to the charging case. Avoid exposing the charging case to water.
- After exposure to sweat or water, ensure the earbuds are completely dry before placing them back into the charging case to prevent damage to the charging contacts.
- Do not use the earbuds in saunas, steam rooms, or for swimming.

Figure 6.1: The HD65 earbuds are designed for sports with IPX7 waterproofing and secure earhooks.
7. Troubleshooting
7.1 Common Issues and Solutions
- Earbuds not pairing:
- Ensure both earbuds are charged.
- Turn off Bluetooth on your device, then turn it back on.
- Forget/delete "HD65" 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 re-initiate pairing mode.
- Only one earbud working:
- Ensure both earbuds are charged.
- Place both earbuds back into the charging case, close the lid, and then open it again. This often resynchronizes them.
- Check if the earbud's charging contacts are clean.
- Poor sound quality:
- Ensure the earbuds are fully inserted into your ears and the ear tips provide a good seal. Try different sized ear tips.
- Clean any debris from the earbud speakers.
- Move closer to your paired device to avoid interference.
- Charging case not charging:
- Ensure the USB-C cable is securely connected to both the case and the power source.
- Try a different USB-C cable or power adapter.
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | HD65 |
| Connectivity Technology | Wireless (Bluetooth) |
| Bluetooth Version | 5.4 |
| Bluetooth Range | 10 Meters (33 ft) |
| Battery Life (Earbuds) | 15 Hours (single charge) |
| Total Playtime (with case) | 75 Hours |
| Audio Driver Size | 14.2 Millimeters |
| Frequency Range | 20 Hz - 20,000 Hz |
| Water Resistance Level | IPX7 |
| Control Type | Media Control (Physical Buttons) |
| Ear Placement | In Ear |
| Form Factor | Over Ear (with earhooks) |
| Noise Control | Sound Isolation (ENC Mic) |
| Item Weight | 5.5 ounces |
| Manufacturer | Aptkdoe |
9. Warranty and Support
9.1 Warranty Information
Aptkdoe provides a 2-year warranty for the HD65 Wireless Earbuds from the date of purchase. This warranty covers manufacturing defects and ensures the product meets its specified performance standards under normal use. Please retain your proof of purchase for warranty claims.
9.2 Customer Support
For any questions, technical assistance, or warranty claims, please contact Aptkdoe customer service. We aim to provide a 24-hour customer service response to address your inquiries promptly.
You can also refer to the official User Guide PDF for additional details: Download User Guide (PDF)