Introduction
Thank you for choosing the H'MASTON RS-13 Wireless Bluetooth 5.3 Earbuds. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your new earbuds. Please read it carefully to ensure optimal performance and longevity of your device.
Product Overview
The H'MASTON RS-13 earbuds feature advanced Bluetooth 5.3 technology, a durable zinc alloy charging case, and intuitive touch controls. Designed for comfort and high-quality audio, they are also IPX4 water-resistant, making them suitable for various activities.

Image: H'MASTON RS-13 Wireless Earbuds and their compact zinc alloy charging case.
Setup
1. Unboxing and Initial Charge
Upon receiving your H'MASTON RS-13 earbuds, carefully open the packaging. Inside, you will find the earbuds, the zinc alloy charging case, and a USB-C charging cable. Before first use, it is recommended to fully charge the earbuds and the charging case.
- Connect the USB-C cable to the charging port on the case and to a compatible power source.
- The charging indicator light on the case will show the charging status. A full charge typically takes approximately 1.5 hours.
- Once fully charged, the earbuds offer up to 6 hours of continuous use, with the charging case providing additional charges for a total of up to 30 hours of battery life. The case can maintain a charge for up to 10 months in standby.

Image: Illustration of the H'MASTON RS-13 earbuds' extended battery life and charging capabilities.
2. Pairing with Your Device
The H'MASTON RS-13 earbuds utilize Bluetooth 5.3 for a stable and efficient connection.
- Open the charging case. The earbuds will automatically power on and enter pairing mode.
- On your device (smartphone, tablet, laptop), go to the Bluetooth settings.
- Search for "RS-13" in the list of available devices and select it to connect.
- Once connected, you will hear an audio prompt, and the earbuds will be ready for use.
The earbuds will automatically reconnect to the last paired device when removed from the case, provided Bluetooth is enabled on your device.

Image: Visual representation of the Bluetooth 5.3 technology for seamless wireless connection.
Operating Instructions
1. Power On/Off
- Power On: Open the charging case, and the earbuds will automatically power on.
- Power Off: Place the earbuds back into the charging case and close the lid. They will automatically power off. If left unconnected for 5 minutes, the earbuds will automatically power off to conserve energy.
2. Touch Controls
The H'MASTON RS-13 earbuds feature touch sensors on both the left and right earbuds for easy control of music playback, calls, and volume.

Image: Close-up of the earbud demonstrating the touch control area.
| Action | Function |
|---|---|
| Single Tap (Left/Right) | Play/Pause Music, Answer/End Call |
| Double Tap (Right) | Next Track |
| Double Tap (Left) | Previous Track |
| Long Press (Right) | Increase Volume |
| Long Press (Left) | Decrease Volume |
| Triple Tap (Left/Right) | Activate Voice Assistant |
3. Audio Quality
The earbuds are equipped with custom high-amplitude, low-distortion drivers that deliver powerful bass and clear sound, ensuring a rich and consistent audio experience.

Image: Diagram illustrating the internal components of the earbud responsible for audio output.
4. Calls and Noise Cancellation
With integrated microphones and active noise cancellation, your voice will be transmitted clearly during calls, while ambient noise is reduced for an improved communication experience.
Maintenance
1. Charging
- Always use the provided USB-C cable for charging.
- Ensure the charging case and earbuds are dry before charging.
- If the earbuds are not used for an extended period, charge them at least once every 3 months to preserve battery health.
2. Water Resistance (IPX4)
The H'MASTON RS-13 earbuds are IPX4 rated, meaning they are resistant to splashes, sweat, and dust. This protection allows for use during light rain or workouts.
- Do not submerge the earbuds in water.
- Avoid exposing them to high-pressure water streams.
- After exposure to sweat or splashes, wipe the earbuds dry before placing them back in the charging case.

Image: The earbuds shown with water droplets, highlighting their IPX4 water resistance.
3. Cleaning
Regularly clean your earbuds and charging case to maintain hygiene and performance.
- Use a soft, dry, lint-free cloth to wipe the earbuds and case.
- For stubborn dirt, slightly dampen the cloth with water. Avoid using harsh chemicals or abrasive materials.
- Ensure charging contacts on both earbuds and case are clean and free of debris.
Troubleshooting
Common Issues and Solutions
- Earbuds not pairing: Ensure both earbuds are in the charging case, then open the lid to activate pairing mode. Check your device's Bluetooth settings and try reconnecting. If issues persist, turn off Bluetooth on your device, restart it, and try again.
- Only one earbud working: Place both earbuds back into the charging case, close the lid, wait a few seconds, then open it again. This often resynchronizes them.
- No sound or low volume: Check the volume levels on both your device and the earbuds. Ensure the earbuds are properly seated in your ears. Clean any debris from the earbud speakers.
- Charging issues: Verify that 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. Try a different USB-C cable or power adapter.
- Earbuds not turning off: Ensure the charging case has sufficient battery and that the earbuds are correctly placed inside the case with the lid closed.
Specifications
| Feature | Detail |
|---|---|
| Model Name | RS-13 |
| Connectivity Technology | Wireless (Bluetooth 5.3) |
| Noise Control | Active Noise Cancellation |
| Earbud Connector | USB-C Port |
| Material | Zinc Alloy (charging case) |
| Charging Time | 1.5 Hours |
| Average Battery Life (Earbuds) | 6 Hours |
| Total Battery Life (with Case) | Up to 30 Hours |
| Water Resistance Level | IPX4 (Splash Resistant) |
| Control Type | Touch Control |
| Compatible Devices | Cell Phones, Tablets, Notebooks, Desktops |
| Weight | 150 g |
| Impedance | 32 Ohms |
| Certification | ANATEL: 11297-23-15069 |
Warranty and Support
Warranty Information
Your H'MASTON RS-13 Wireless Bluetooth 5.3 Earbuds may be eligible for an extended warranty against failures and defects. Please refer to your purchase documentation or contact your retailer for details regarding warranty coverage and terms.
Customer Support
For further assistance, technical support, or inquiries not covered in this manual, please contact H'MASTON customer service through the official website or your point of purchase. Keep your product model number (RS-13) and proof of purchase handy when contacting support.





