Introduction
Welcome to the user manual for your Noise Buds VS501 True Wireless Earbuds. This guide provides essential information to help you set up, operate, maintain, and troubleshoot your earbuds, ensuring an optimal audio experience. Please read this manual thoroughly before using the product.
What's in the Box
Upon unboxing your Noise Buds VS501, you should find the following items:
- 1N Bluetooth Headphone (Earbuds)
- 1N Charging Case
- 1N Charging Cable (Type-C)
- 1N User Manual
- 1N Warranty Registration Card
Product Overview
The Noise Buds VS501 are designed for a seamless audio experience with advanced features. Familiarize yourself with the components:

Image: Noise Buds VS501 True Wireless Earbuds, showcasing their sleek design.

Image: An overview of key features including Bluetooth 5.3, 50 hours playtime, IPX5 water resistance, dual-device pairing, Quad Mic ENC, Trubass, dual color tones, and 10mm drivers.
The earbuds feature a 10mm dynamic driver for rich sound and Quad Mic with Environmental Noise Cancellation (ENC) for clear calls. The charging case provides extended battery life, offering up to 50 hours of total playtime.

Image: Close-up of a single Noise Buds VS501 earbud, highlighting the 10mm driver for amplified audio.
Setup
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 correctly seated.
- Connect the Type-C charging cable to the charging port on the case and the other end to a power source.
- The indicator light on the charging case will show the charging status. Once fully charged, the indicator may change or turn off.
The charging case provides multiple charges for the earbuds, extending the total listening time.

Image: The Noise Buds VS501 charging case, emphasizing its capability for up to 50 hours of playtime.
Pairing with Your Device
The Noise Buds VS501 feature HyperSync™ for quick pairing.
- 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 "Noise Buds VS501" from the list.
- Once connected, you will hear an audio prompt, and the earbuds will be ready for use.
For subsequent uses, the earbuds will automatically connect to the last paired device when taken out of the case.
Operating
Touch Controls
The earbuds are equipped with touch-sensitive controls for various functions:
- Play/Pause: Single tap on either earbud.
- Next Track: Double tap on the right earbud.
- Previous Track: Double tap on the left earbud.
- Answer/End Call: Single tap on either earbud.
- Reject Call: Press and hold either earbud for 2 seconds.
- Activate Voice Assistant (Siri/Google Assistant): Triple tap on either earbud.
Dual Device Pairing
The Noise Buds VS501 support dual device pairing, allowing seamless switching between two connected devices.

Image: Noise Buds VS501 connected to both a smartphone and a tablet, illustrating the dual-device pairing feature.
To use this feature:
- Pair the earbuds with your first device (e.g., smartphone).
- Disconnect the earbuds from the first device's Bluetooth settings. The earbuds will re-enter pairing mode.
- Pair the earbuds with your second device (e.g., laptop).
- Now, the earbuds are paired with both devices. To switch, simply play audio or answer a call on the desired device, and the earbuds will automatically connect.
Making Calls
The Quad Mic with ENC (Environmental Noise Cancellation) ensures clear voice transmission during calls, even in noisy environments.

Image: A person wearing a Noise Buds VS501 earbud, illustrating the Quad Mic with ENC feature for clear conversations.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your Noise Buds VS501.
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials.
- Water Resistance: The earbuds are IPX5 water resistant, meaning they can withstand splashes and sweat. Do not submerge them in water or expose them to heavy rain.
- Storage: When not in use, store the earbuds in their charging case to protect them and keep them charged. Store in a cool, dry place away from extreme temperatures.
- Charging Port: Keep the Type-C charging port free from dust and debris.

Image: Visual representation of HyperSync, Bluetooth v5.3, and IPX5 water resistance features of the Noise Buds VS501.
Troubleshooting
If you encounter issues with your Noise Buds VS501, refer to the following common solutions:
- Earbuds not pairing/connecting:
- Ensure both earbuds are charged.
- Turn off and on Bluetooth on your device.
- Forget "Noise Buds VS501" from your device's Bluetooth list and try pairing again.
- Perform a factory reset (refer to the manufacturer's website or contact support for specific instructions).
- Only one earbud working:
- Place both earbuds back into the charging case, close the lid, wait a few seconds, then open it again.
- Ensure both earbuds are charged.
- Clean the charging contacts on both earbuds and inside the case.
- Perform a factory reset.
- Charging issues:
- Ensure the charging cable is securely connected to both the case and the power source.
- Try a different Type-C charging cable and power adapter.
- Clean the charging port on the case.
- Low volume or poor sound quality:
- Adjust the volume on your connected device.
- Ensure the earbuds are properly seated in your ears.
- Clean any earwax or debris from the earbud nozzles.
Specifications
| Brand | Noise |
| Model Name | Buds VS501 |
| Model Number | AUD-HDPHN-BUDSVS501-BLK |
| Ear Placement | In Ear |
| Form Factor | True Wireless |
| Bluetooth Version | 5.3 |
| Bluetooth Range | 10 Metres |
| Battery Average Life | 50 Hours (Total Playtime with Case) |
| Audio Driver Size | 10 Millimetres |
| Product Features | Noise Cancellation (ENC), Dual Device Pairing |
| Water Resistance Level | IPX5 Water Resistant |
| Headphones Jack | Type-C Fast Charging Jack |
| Control Method | Voice, Touch |
| Controller Type | Google Assistant, Siri |
| Item Weight | 50 Grams |
| Material | Polycarbonate (PC) |
Warranty and Support
Warranty Information
Your Noise Buds VS501 come with a 1-year warranty provided by the manufacturer from the date of purchase. Please retain your proof of purchase for warranty claims.
Customer Support
For any technical assistance, warranty claims, or product-related inquiries, please contact Noise customer support:
- Manufacturer: Nexxbase Marketing Pvt. Ltd
- Address: Khasra No-146/25/2/1, Jail Road Badshahpur, Gurugram Haryana-122101
- Contact Number: 8882-132-132