1. Product Overview
The QCY Melobuds N50 are advanced ANC Wireless Earphones designed to deliver an immersive audio experience with crystal-clear calls and customizable features. They boast adaptive active noise cancellation, a powerful dynamic driver, and seamless multipoint connectivity.
Package Contents
- QCY Melobuds N50 Earphones
- Charging Case
- User Manual
- Charging Cable (Type-C)
- Eartips (S, M, L sizes)

2. Setup and First Use
2.1 Choose Your Eartips
Select the eartips that provide the most comfortable and secure fit for your ears. Medium eartips are recommended as they fit most people. A proper seal is crucial for optimal sound quality and noise cancellation.

2.2 How to Wear
- Put on the earbuds and gently rotate and adjust them to fit comfortably and securely in your ears.
- Ensure the microphone is pointing towards your mouth for optimal call clarity.
- Improper wear may affect call quality and audio performance.

2.3 First-Time Connection (Pairing)
- Pick up both earbuds from the charging case. Remove any isolation films (stickers) from the earbuds' charging contacts.
- Place both earbuds back into the charging case and close the lid. This step activates the earbuds.
- Open the charging case lid again and pick up both earbuds.
- On your smartphone, open Bluetooth settings, search for "QCY MeloBuds N50" in the device list, and tap to connect.

2.4 Multi-Point Connection
The QCY Melobuds N50 support connecting to two devices simultaneously.
- Ensure earbuds are powered on and in pairing mode. Connect them to Device A.
- After connecting to Device A, turn off Bluetooth on Device A. The earbuds will re-enter pairing mode.
- On Device B, open Bluetooth settings, search for "QCY MeloBuds N50", and tap to connect.
- On Device A, turn on Bluetooth and tap the previously paired "QCY MeloBuds N50" to complete the multipoint connection. The earbuds are now connected to both devices.

2.5 Factory Reset
If you encounter connection issues, you can perform a factory reset:
- Ensure both earbuds are outside the charging case and disconnected from all devices.
- Tap both earbuds' touch panels 5 times simultaneously. The earbud LEDs will blink white 5 times, then stop, indicating the reset is complete.
- After resetting, follow the "First-Time Connection" steps to pair the earbuds with your device again.
3. Operating Instructions
3.1 Power On/Off
- Power On: Open the charging case lid and pick up the earbuds. Alternatively, if earbuds are outside the case, touch and hold the touch panels for approximately 2 seconds.
- Power Off: Place the earbuds back into the charging case and close the lid.
3.2 Customizable Touch Controls
The QCY Melobuds N50 feature intuitive touch controls on each earbud:

- Answer/End Call: Double touch either earbud's touch panel.
- Reject Call: Touch and hold either earbud's touch panel for approximately 1.5 seconds.
- Play/Pause Music: Double touch either earbud's touch panel.
- Next Track: Triple touch the right earbud's touch panel.
- Previous Track: Touch and hold the left earbud's touch panel for 2 seconds.
- Activate Voice Assistant: Quadruple touch either earbud's touch panel.
- Low Latency Mode: Touch and hold the left earbud's touch panel.
- Switch ANC Modes (ANC On / ANC Off / Transparent Mode): Touch and hold the right earbud's touch panel to cycle through modes.
3.3 Active Noise Cancellation (ANC)
The Melobuds N50 feature adaptive ANC technology that detects external noises and automatically adjusts the noise cancelling level for your surroundings, achieving up to 97% noise reduction (-45dB).

You can customize your noise cancelling experience with three levels and four modes:
- Commute Mode
- Anti-Wind Noise Mode
- Crowd Mode
- Indoor Mode

3.4 Transparent Mode
Transparent Mode allows you to stay aware of your surroundings while enjoying your audio. This mode lets in ambient sounds and important notifications, ensuring safety on-the-go.

3.5 Crystal-Clear Calls
The earbuds feature a 6-microphone AI technology and an anti-wind noise design to effectively pick up your voice while significantly reducing background noise. This ensures clear communication during calls, video chats, and live streams.


3.6 QCY APP Personalization
Download and install the QCY mobile application to unlock additional features and customize your listening experience:
- EQ Settings: Choose from 6 studio-grade preset EQs (Default, Pop, Heavy Bass, Rock, Soft, Classic) or create custom sound profiles.
- Custom Control: Personalize touch controls.
- Gaming Mode: Activate low-latency mode for an optimized gaming experience.
- Find My Earbuds: Locate misplaced earbuds.

3.7 Low-Latency Game Mode
Activate the 68ms low-latency gaming mode for a competitive edge during your gaming sessions, ensuring synchronized audio and visuals.

4. Charging
4.1 Earbuds Charging
Place the earbuds into the charging case. The earbud LEDs will glow solid red while charging and turn white for 10 seconds when fully charged before turning off.
4.2 Charging Case Charging
Connect the charging case to a power source using the provided Type-C charging cable. The LED on the case will blink white while charging and turn solid white when fully charged.
4.3 Battery Life and Indicators
The QCY Melobuds N50 offer up to 28 hours of total playtime with the charging case. A quick 10-minute fast charge provides 2 hours of playback.
- Single Charge Playback: 6 hours (ANC Off), 4 hours (ANC On)
- Charging Case Power Indicator:
- If the case has sufficient power, the LED will turn white for 4 seconds when earbuds are placed in.
- If the case's power is low, the LED will blink white for 4 seconds when earbuds are placed in.

5. Maintenance
5.1 Cleaning
- Do not use oil or other volatile liquids to clean the product.
- Gently wipe the earbuds and charging case with a soft, dry cloth.
- Ensure charging contacts are clean and free of debris.
5.2 Storage
- If the earbuds are not used for an extended period (more than 2 weeks), please recharge them to maintain battery health.
- Do not expose the product to extremely low (below 0°C) or high (above 45°C) temperatures.
- Store the earbuds and charging case in a cool, dry place.
6. Troubleshooting (FAQ)
Q: What should I do if the headset received is unable to turn on?
A: Confirm that the charging case has power left (press the button on the case and check if at least one LED is illuminated). If the charging case is powered off, please put the earphones in the charge case and charge for 1 hour. (Before charging, please remove the stickers on new earphones). Connect the case with your included USB cable and plug it into a USB power source.
Q: What should I do if sound comes from only one earphone?
A: Put both earphones back into the charging case and close the cover, then take them out again to check whether both ears have sound. If only one earphone still has sound, please restore the factory settings for both earphones.
Q: How to solve the problem that the mobile phone prompts that it cannot connect?
A: Delete the pairing record on the mobile phone, and then search for pairing and connect again.
Q: How to solve the problem that there is no sound when listening to music/calling?
A: On Android phones, there is a settings icon on the right side of the Bluetooth connection name. Click to enter, turn off the mobile phone audio and media audio, and then turn them on again. If there is still no sound, please re-pair the earphones with the mobile phone.
Q: Why is there a delay in video/games?
A: Affected by factors such as the use environment, network, and mobile phone Codec, there will be different degrees of delay when the mobile phone transmits audio data to the earphone.
Q: How to solve the problem of stuck/intermittent sound?
A: If there are a lot of Wi-Fi, 5G/4G signals, high-power electrical appliances around, it may cause stuck and intermittent sound. Please change the environment or re-pairing can solve the problem.
7. Specifications

| Feature | Specification |
|---|---|
| Product Name | QCY MeloBuds N50 |
| Pairing Name | QCY MeloBuds N50 |
| Bluetooth Version | 5.4 |
| Compatible Systems | iOS / Android |
| Maximum Wireless Range | 10m-20m |
| Battery Life (with Charging Case) | Up to 28 hours |
| Single Use Time (ANC Off) | 6 hours |
| Single Use Time (ANC On) | 4 hours |
| Bluetooth Profiles | HFP/A2DP/AVRCP |
| Charging Case Battery Capacity | 380mAh |
| Earbud Battery Capacity | 30mAh |
| Charging Port | Type-C |
| Water Resistance Rating | IPX4 (Waterproof) |
| Material | PVC, ABS |
| Driver Diameter | 12mm |
| Vocalism Principle | Dynamic |
| Certifications | CE, FCC, RoHS, BQB |
| Origin | Mainland China |
| Earbud Weight | 4g |
| Charging Case Dimensions | 50.2mm x 58mm x 25mm |
| Earbud Dimensions | 55.5mm x 24.5mm |
8. Safety Precautions
- Please carefully read and retain this user manual before using the product.
- If the product is not used for an extended period (more than 2 weeks), please recharge it.
- You must choose a charger produced by a legitimate manufacturer and certified by the national safety authority. The charger's power output should be between 2 Watts (minimum) and 5 Watts (maximum) for optimal charging speed.
- Do not disassemble or modify the battery, insert foreign objects, expose it to high temperatures, or immerse it in water or other liquids to prevent battery leakage, overheating, ignition, or explosion. Battery replacement should only be done by the manufacturer.
- Do not drop, crush, or puncture the battery. Prevent external pressure that may lead to internal short circuits and overheating.
- Do not dismantle or modify the earbuds for any reason, as it may result in fire, electronic breakdown, or permanent damage to the product.
- Do not expose the product to extremely low (below 0°C) or high (above 45°C) temperatures.
- Avoid using the product indicator light near the eyes of children or animals.
- Do not use the product during thunderstorms, as it may cause abnormal operation and increase the risk of electric shock.
- Do not use oil or other volatile liquids to clean the product.
- Please do not use this device for long periods of time and at high volume, as there is a risk of hearing damage.
Product Hazardous Substances Information
The following table indicates the presence of hazardous substances in the product components, in accordance with SJ/T 11364 and GB/T 26572 standards.
| Part Name | Lead (Pb) | Mercury (Hg) | Cadmium (Cd) | Hexavalent Chromium (Cr(VI)) | Polybrominated Biphenyls (PBB) | Polybrominated Diphenyl Ethers (PBDE) |
|---|---|---|---|---|---|---|
| Outer Casing | O | O | O | O | O | O |
| Circuit Board Components | X | O | O | O | O | O |
| Battery | O | O | O | O | O | O |
| Charging Cable | X | O | O | O | O | O |
| Accessories | O | O | O | O | O | O |
O: Indicates that this hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement of GB/T 26572.
X: Indicates that this hazardous substance contained in at least one of the homogeneous materials for this part is above the limit requirement of GB/T 26572.
Environmental Protection Use Period
Under normal use conditions, the environmental protection use period of this product is 10 years. During this period, the product will not leak any dangerous substances and can be recycled according to local regulations.
9. Warranty and Support
9.1 Warranty Information
Your QCY product purchase is covered by a one-year limited manufacturer warranty from the date of delivery. Please ensure you retain your purchase receipt. If any defects occur due to quality issues within the warranty period, kindly bring both the warranty card and the purchase receipt to the authorized dealer for complimentary replacement services.
Warranty Exclusions:
The manufacturer's warranty is void under the following circumstances (but not limited to):
- Improper or inadequate maintenance or modification.
- Accident, misuse, abuse, contamination, or other external causes.
- The use of unspecified adapter and accessories.
- Malfunctions or damages resulting from natural disasters, earthquakes, lightning, abnormal voltage, or environmental factors.
- Damages that occur as a result of one's failure to follow the instructions in this manual.
9.2 Contact Information
- Phone: 4008-306-708
- Website: www.qcy.com
- Manufacturer: Dongguan Hele Electronics Co., Ltd.
- Address: No. 325 Yuehui Rd. Daojiao Town Dongguan City Guangdong Province China
10. User Tips
- Initial Setup: Always remember to remove any protective stickers or isolation films from the earbud charging contacts before first use and charging.
- Computer Connectivity: Connecting the earbuds to a computer may impact the experience due to device and chip compatibility issues. For optimal performance, it is recommended to use compatible smartphone devices.
- Environmental Interference: If you experience stuttering or intermittent sound, check your surroundings for strong Wi-Fi, 5G/4G signals, or high-power electrical appliances that might cause interference. Changing your environment or re-pairing the earbuds can often resolve this issue.
- App Usage: For the most comprehensive control and customization options, download and utilize the official QCY application.





