Rythflo WH03
Rythflo Bluetooth Headphones
User Manual - Model WH03
Introduction
Thank you for choosing the Rythflo Bluetooth Headphones. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your new headphones. Please read this manual thoroughly to ensure optimal performance and longevity of your device.
What's in the Box
Carefully unpack your Rythflo Bluetooth Headphones and ensure all items are present:
- 1 x Rythflo Neckband Earphone
- 1 x USB-C Charging Cable
- 3 x Pairs of S Size Eartips
- 3 x Pairs of M Size Eartips
- 3 x Pairs of L Size Eartips

Image: Rythflo Bluetooth Headphones, showcasing the neckband and in-ear earbuds.
Product Features
- High-Quality Audio: Custom acoustic platform with a 13 mm driver unit for powerful, balanced sound with rich bass and enhanced clarity.
- Ultra-Long Battery Life: Up to 150 hours of playtime and over 3 months standby time after a full charge.
- Super Fast Charging: 10 minutes of charging provides 15 hours of listening time.
- IPX7 Water and Sweat Resistant: Suitable for all-weather and various environments.
- Advanced Bluetooth 5.3 Chip: Ensures faster transmission speeds and more stable connections.

Image: Visual representation of the 150-hour playtime capability.

Image: Detailed view of the 13mm dynamic driver, highlighting its ability to produce rich sound.

Image: Close-up of the headphone controls, illustrating the ENC technology for clear calls.

Image: The headphones shown with water droplets, emphasizing their IPX7 water and sweat resistance.
Setup
1. Charging the Headphones
Before first use, fully charge your headphones. Connect the provided USB-C charging cable to the charging port on the neckband and plug the other end into a USB power source (e.g., computer, wall adapter). A full charge takes approximately 2 hours. For quick use, a 10-minute charge provides up to 15 hours of listening time.
2. Selecting Eartips
Choose the eartips that provide the most comfortable and secure fit for your ears. The package includes three sizes (S, M, L) to ensure a proper seal for optimal sound quality and noise isolation.

Image: Illustration of the various eartip sizes (XL, L, M) available for customization.
3. Pairing with a Bluetooth Device
- Ensure the headphones are charged and turned off.
- Press and hold the multi-function button on the headphone control unit until the LED indicator flashes blue and red, indicating pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "Rythflo WH03" from the list of found devices.
- Once connected, the LED indicator will flash blue slowly or turn off, depending on the model.
Operating Instructions
Power On/Off
- Power On: Press and hold the multi-function button until the LED indicator lights up.
- Power Off: Press and hold the multi-function button until the LED indicator turns off.
Music Playback
- Play/Pause: Press the multi-function button once.
- Next Track: Press and hold the Volume + button.
- Previous Track: Press and hold the Volume - button.
Volume Control
- Volume Up: Press the Volume + button.
- Volume Down: Press the Volume - button.
Call Management
- Answer/End Call: Press the multi-function button once.
- Reject Call: Press and hold the multi-function button.
- Redial Last Number: Double-press the multi-function button.
Magnetic Earbuds
The earbuds feature a magnetic design, allowing them to snap together when not in use. This helps prevent tangling and keeps them securely around your neck.
Maintenance
- Cleaning: Wipe the headphones and eartips with a soft, dry cloth. For the silicone parts, a slightly damp cloth can be used, but ensure they are completely dry before use or charging.
- Eartip Care: Regularly remove and clean the eartips to prevent wax buildup, which can affect sound quality.
- Storage: When not in use, store the headphones in a cool, dry place, away from direct sunlight and extreme temperatures. The magnetic earbuds help keep them tidy.
- Water Resistance: While IPX7 rated, avoid submerging the headphones in water for extended periods. Ensure the charging port is dry before connecting the charging cable.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones won't turn on | Low battery | Charge the headphones fully. |
| Cannot pair with device | Headphones not in pairing mode; Device Bluetooth off; Too far from device | Ensure headphones are in pairing mode (flashing blue/red). Turn device Bluetooth off/on. Move headphones closer to device (within 10 meters). |
| No sound | Volume too low; Not connected; Incorrect audio output selected on device | Increase headphone and device volume. Ensure headphones are connected. Check device's audio output settings. |
| Poor sound quality | Weak Bluetooth signal; Eartips not sealed properly; Earbuds dirty | Move closer to the device. Try different eartip sizes for a better seal. Clean the earbuds and eartips. |
| Headphones disconnect frequently | Interference; Out of range; Low battery | Avoid strong Wi-Fi signals or other Bluetooth devices. Stay within 10 meters of your device. Charge the headphones. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | WH03 |
| Brand | Rythflo |
| Connectivity Technology | Bluetooth 5.3 |
| Wireless Communication Technology | Bluetooth |
| Material | Silicone |
| Charging Time | 10 minutes (for 15 hours playtime) |
| Battery Life | 150 Hours |
| Bluetooth Range | 10 Meters |
| Audio Driver Size | 13 Millimeters |
| Water Resistance Level | Waterproof (IPX7) |
| Item Weight | 4.7 Ounces |
| Product Dimensions | 8.2 x 0.9 x 5 inches |
| UPC | 755977378446 |
Warranty and Support
Rythflo stands behind the quality of its products. For any questions or assistance, please refer to the following:
- Product Quality Support: Rythflo offers lifetime product quality support for your headphones.
- Quick Reply: Expect a response within 1 business day for email inquiries.
- User Manual (PDF): For a downloadable version of the user manual, please visit: Rythflo WH03 User Manual PDF

Image: Rythflo's commitment to customer support, including quick replies and lifetime product quality support.
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