Rhyfell A20

Rhyfell Bone Conduction Headphones A20 User Manual

Model: A20 | Brand: Rhyfell

Introduction

Thank you for choosing the Rhyfell Bone Conduction Headphones A20. These open-ear wireless headphones are designed to provide a comfortable and safe listening experience, allowing you to stay aware of your surroundings while enjoying high-quality audio. This manual provides essential information on setup, operation, maintenance, and troubleshooting to ensure optimal performance of your device.

Product Overview

The Rhyfell A20 headphones feature advanced bone conduction technology, delivering sound through your cheekbones, leaving your ears open. This design is ideal for sports, commuting, and office use, where situational awareness is crucial.

  • Open-Ear Design: Ensures awareness of surroundings for safety during outdoor activities.
  • Dual Stereo Bass Technology: Combines bone conduction for clear highs with air conduction for deep bass, providing powerful 3D audio.
  • 15 Hours Playtime: Enjoy extended listening with a 240mAh battery and efficient Bluetooth 5.3.
  • ENC Noise-Canceling Microphone: Vocal Enhancement Technology and dual wind-resistant microphones filter out up to 80% of background noise for crystal-clear calls.
  • IPX6 Sweatproof: Designed to resist water and sweat, suitable for workouts, fitness, and running. (Not suitable for underwater swimming.)
  • Lightweight Design: Weighing only 27g, these headphones offer comfortable, pressure-free wear for extended periods.
  • Bluetooth 5.3: Provides stable transmission and multi-device connectivity with anti-jamming technology.
Rhyfell Bone Conduction Headphones A20 worn by a man during exercise, highlighting fitness features.

Image: Rhyfell Bone Conduction Headphones A20 worn by a man during exercise, emphasizing its suitability for fitness activities.

Diagram illustrating Dual Stereo Bass Bone Conduction technology.

Image: Diagram illustrating the Dual Stereo Bass Bone Conduction technology, showing sound transmission.

Man running outdoors, highlighting 15 hours of battery life.

Image: A man running outdoors, illustrating the 15-hour battery life for all-day use.

What's in the Box

  • Rhyfell Bone Conduction Headphones A20
  • USB-C Charging Cable

Setup

1. Charging the Headphones

Before first use, fully charge your Rhyfell A20 headphones. Connect the provided USB-C charging cable to the charging port on the headphones and to a compatible USB power source. The charging time is approximately 2 hours.

2. Bluetooth Pairing

  1. Power On: Press and hold the power button (usually the volume up button) for 3-5 seconds until you hear a voice prompt indicating "Power On" and "Pairing". The LED indicator will flash, signifying it's in pairing mode.
  2. Activate Bluetooth: On your device (smartphone, tablet, etc.), go to the Bluetooth settings and ensure Bluetooth is turned on.
  3. Select Device: Look for "Rhyfell A20" in the list of available devices and select it to connect.
  4. Confirmation: Once successfully paired, you will hear a voice prompt "Connected" and the LED indicator will stop flashing or show a steady light.

Operating Instructions

The Rhyfell A20 headphones feature intuitive button controls for easy management of your audio and calls.

Diagram showing control buttons for Rhyfell Bone Conduction Headphones A20.

Image: Detailed diagram of the control buttons on the Rhyfell A20 headphones, indicating functions.

Power On/Off

  • Power On: Press and hold the power button (usually the volume up button) for 3-5 seconds.
  • Power Off: Press and hold the power button for 3-5 seconds until you hear a voice prompt "Power Off".

Volume Control

  • Increase Volume: Double-click the volume up (+) button.
  • Decrease Volume: Double-click the volume down (-) button.

Music Playback

  • Play/Pause: Single-click the multi-function button (often the power button or a dedicated play/pause button).
  • Next Song: Triple-click the volume up (+) button.
  • Previous Song: Triple-click the volume down (-) button.

Call Management

  • Answer/Hang Up Call: Single-click the multi-function button.
  • Reject Call: Double-click the multi-function button.

Video: An overview of the Rhyfell Bone Conduction Headphones, demonstrating their features and ease of use during various activities.

Maintenance

  • Cleaning: Wipe the headphones with a soft, damp cloth. Do not use harsh chemicals or abrasive materials.
  • Water Resistance: The headphones are IPX6 rated, meaning they are resistant to sweat and splashes. Do not submerge them in water or use them for swimming.
  • Storage: Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures.
  • Charging: Use only the provided USB-C cable for charging. Avoid using damaged cables or chargers.

Troubleshooting

ProblemPossible CauseSolution
Cannot power onLow batteryCharge the headphones fully.
Cannot pair with deviceBluetooth not enabled or headphones not in pairing modeEnsure Bluetooth is on your device. Put headphones in pairing mode (hold power button for 3-5 seconds).
No soundVolume too low or not connectedIncrease volume on headphones and device. Re-pair the headphones.
Poor call qualityEnvironmental noise or weak signalMove to a quieter environment. Ensure headphones are within Bluetooth range of your device.

Specifications

FeatureDetail
Model NameRhyfell Fit 1 (A20)
Connectivity TechnologyBluetooth 5.3
Audio Driver TypeBone Conduction Driver
Battery LifeUp to 15 hours playtime
Charging Time2 Hours
Water Resistance LevelIPX6 (Waterproof/Sweatproof)
Item Weight27 Grams (0.952 ounces)
Noise ControlEnvironmental Noise Cancellation (ENC)
Bluetooth Range10 Meters
MaterialSilicone
Product Dimensions5 x 4 x 1.6 inches

Warranty and Support

For warranty information and customer support, please refer to the product packaging or contact Rhyfell customer service directly. Keep your purchase receipt for warranty claims.

© 2026 Rhyfell. All rights reserved.

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