1. Important Safety Information
Please read all safety warnings and instructions carefully before using this product. Keep this user manual for future reference.
- Do not expose the headphones to extreme temperatures, humidity, or corrosive environments.
- Avoid dropping, impacting, or disassembling the device.
- Do not use abrasive cleaning agents to clean the headphones. Use a soft, dry cloth.
- Prolonged listening at high volume levels may cause hearing damage. Adjust volume to a safe level.
- Keep out of reach of children.
2. Package Contents
Ensure all items are present in your package:
- KVIDIO Wireless Bluetooth Headphone
- 3.5mm Backup Audio Cable
- USB Charging Cable
- User Manual

3. Product Overview
Familiarize yourself with the controls and ports on your KVIDIO WH201A headphones:
- Volume Up / Previous Track: Press briefly for volume up, long press for previous track.
- Power / Multi-function Button: Press and hold to power on/off or enter pairing mode. Briefly press to play/pause music or answer/end calls.
- Volume Down / Next Track: Press briefly for volume down, long press for next track.
- Microphone: For hands-free calls.
- USB Charging Port: For charging the headphones.
- 3.5mm Audio Port: For wired connection.

4. Setup
4.1 Charging the Headphones
Before first use, fully charge your headphones. A full charge takes approximately 2.5 hours and provides up to 65 hours of playtime.
- Connect the supplied USB charging cable to the USB charging port on the headphones.
- Connect the other end of the USB cable to a compatible USB power source (e.g., computer USB port, wall adapter).
- The LED indicator will show charging status (e.g., red for charging, blue for fully charged).
4.2 Powering On/Off
- To Power On: Press and hold the Multi-function button for 2-3 seconds until the LED indicator flashes blue and you hear an audible prompt.
- To Power Off: Press and hold the Multi-function button for 3-4 seconds until the LED indicator flashes red and you hear an audible prompt.
4.3 Bluetooth Pairing
Pair your headphones with your device to enjoy wireless audio.
- Ensure the headphones are powered off.
- Press and hold the Multi-function button for approximately 5 seconds until the LED indicator flashes red and blue alternately, indicating pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "WH201A" from the list of found devices.
- Once connected, the LED indicator will flash blue slowly, and you will hear a confirmation tone.

4.4 Wired Connection
For devices without Bluetooth or when the battery is low, use the 3.5mm audio cable:
- Plug one end of the 3.5mm audio cable into the audio port on the headphones.
- Plug the other end into the 3.5mm audio jack of your device.
- The headphones will automatically switch to wired mode.
4.5 Multi-device Connection
The KVIDIO WH201A headphones support simultaneous connection to two Bluetooth devices, allowing for easy switching between audio sources.

5. Operating the Headphones
5.1 Basic Controls
- Play/Pause: Short press the Multi-function button.
- Volume Up: Short press the "+" button.
- Volume Down: Short press the "-" button.
- Next Track: Long press the "-" button.
- Previous Track: Long press the "+" button.
5.2 Making Calls
When connected via Bluetooth, you can manage calls directly from your headphones:
- Answer/End Call: Short press the Multi-function button.
- Reject Call: Long press the Multi-function button.
- Voice Assistant: Double-press the Multi-function button to activate your device's voice assistant.

6. Comfort and Design
The KVIDIO WH201A headphones are designed for extended wear and portability:
- Comfortable Earmuffs: Made with soft memory-protein foam for all-day comfort, reducing pressure on the ears.
- Adjustable Headband: The headband is adjustable to fit various head sizes securely.
- Foldable Design: The headphones feature a foldable design, making them compact and easy to store or carry for travel.
- Lightweight: Weighing only 0.44 lbs, they are ideal for prolonged use without discomfort.

7. Maintenance
To ensure the longevity and optimal performance of your headphones, follow these maintenance guidelines:
- Cleaning: Use a soft, dry, lint-free cloth to wipe the headphones. Do not use liquids or aerosol cleaners.
- Storage: When not in use, store the headphones in a cool, dry place, away from direct sunlight and extreme temperatures. The foldable design allows for compact storage.
- Battery Care: To preserve battery life, avoid fully discharging the headphones frequently. Charge them regularly, even if not in constant use.
- Cable Care: Handle the audio and charging cables gently. Avoid sharp bends or excessive pulling to prevent damage.
8. Troubleshooting
If you encounter issues with your KVIDIO WH201A headphones, try the following solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones won't turn on | Low battery | Charge the headphones fully using the provided USB cable. |
| Cannot pair via Bluetooth | Headphones not in pairing mode / Device Bluetooth off | Ensure headphones are in pairing mode (flashing red/blue LED). Turn off and on your device's Bluetooth. |
| No sound in Bluetooth mode | Volume too low / Not connected / Wrong audio output | Increase headphone and device volume. Re-pair the headphones. Check device's audio output settings. |
| No sound in wired mode | Cable not fully inserted / Damaged cable | Ensure 3.5mm cable is fully inserted into both ports. Try a different 3.5mm cable if available. |
| Poor call quality | Weak signal / Microphone obstruction | Move closer to your paired device. Ensure the microphone is not covered. |
9. Specifications
| Feature | Detail |
|---|---|
| Model Name | WH201A |
| Connectivity Technology | Wireless (Bluetooth), Wired (3.5mm Jack) |
| Wireless Communication Technology | Bluetooth 5.4 |
| Bluetooth Range | 10 Meters (33 feet) |
| Battery Life | 65 Hours |
| Charging Time | 2.5 Hours |
| Audio Driver Size | 40 Millimeters |
| Noise Control | Sound Isolation |
| Frequency Response | 20 KHz |
| Sensitivity | 105 dB |
| Impedance | 32 Ohms |
| Audio Latency | 250 Milliseconds |
| Item Weight | 0.44 Pounds (7 ounces) |
| Product Dimensions | 3.15 x 5.12 x 5.12 inches |
| Material | Leather, Plastic |
| Color | White |
10. Warranty and Support
KVIDIO products are designed for reliability and performance. For warranty information and customer support, please refer to the contact details provided with your purchase or visit the official KVIDIO website.
If you experience any issues or have questions regarding your WH201A headphones, our customer support team is ready to assist you.



