Introduction
Thank you for choosing the SIMOLIO Kids Wireless Headphones Model JH-711. This manual provides essential information for the proper setup, operation, and maintenance of your headphones. Please read it carefully to ensure safe and optimal use.
Product Features
- 3-Level Volume Limiting: Protects children's hearing with switchable volume limits (75dB for toddlers, 85dB for kids, 94dB for adults). This feature is active in both wired and wireless modes.
- Noise Isolation: Over-ear design provides passive noise reduction, helping to block external sounds for improved listening focus.
- Wireless & Wired Modes: Offers Bluetooth connectivity for wireless use and includes a 3.5mm audio cable for wired connection when the battery is depleted or for non-Bluetooth devices.
- Built-in Microphone: Enables hands-free calling and voice chat.
- Audio Sharing Port: Allows another headphone to connect and share audio from the same device.
- Durable & Flexible Design: Constructed with memory stainless steel strips in the headband for impressive durability and flexibility, designed to withstand active use. Earmuffs feature an anti-shedding design.
- Foldable & Compact: Easy to fold and store in the included EVA carrying case, ideal for travel and school.
- Long Battery Life: Up to 15 hours of playtime on a single charge.

The headphones feature a 3-level volume limiter to protect hearing, adjustable for toddlers, kids, and adults.

The flexible and durable design allows the headphones to withstand bending and twisting.
What's in the Box
The package includes the following items:
- SIMOLIO Kids Wireless Headphones JH-711
- Charging Cable (USB)
- AUX Cable (3.5mm audio cable)
- User Manual
- Carrying EVA Case
Setup
1. Charging the Headphones
Before first use, fully charge the headphones. Connect the provided USB charging cable to the charging port on the headphones and to a USB power source (e.g., computer, wall adapter). The LED indicator will show charging status and turn off when fully charged.
2. Bluetooth Pairing
- Ensure the headphones are turned off.
- Press and hold the Multi-Function Button (MFB) until the LED indicator flashes blue and red alternately, indicating pairing mode.
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "SIMOLIO JH-711" from the list of devices.
- Once connected, the LED indicator will flash blue slowly.
3. Wired Mode Connection
To use the headphones in wired mode, connect one end of the 3.5mm AUX cable to the audio jack on the headphones and the other end to the audio output of your device. The headphones will automatically switch to wired mode, even if the battery is dead.

The headphones support both wireless Bluetooth mode and wired mode via the included AUX cable.
4. Volume Limiter Adjustment
Locate the 3-level volume limiter switch on the headphones. Adjust the switch to the desired maximum volume level:
- 75dB (S): Recommended for toddlers or very quiet environments.
- 85dB (M): Recommended for children in general listening environments.
- 94dB (L): Recommended for adults or noisy environments.

Adjust the physical switch to select the appropriate volume limit.
5. Using the Sharing Port
The headphones feature an additional sharing jack on the right side. To share audio, plug another headphone into this port. This allows two users to listen to the same audio source simultaneously.

Connect another headphone to the sharing port to share audio with a friend.
Operating Instructions
1. Power On/Off
- Power On: Press and hold the MFB for approximately 3 seconds until the LED indicator lights up.
- Power Off: Press and hold the MFB for approximately 3 seconds until the LED indicator turns off.
2. Music Playback
- Play/Pause: Short press the MFB.
- Next Track: Short press the "+" button.
- Previous Track: Short press the "-" button.
- Volume Up: Long press the "+" button.
- Volume Down: Long press the "-" button.
3. Call Management
When connected via Bluetooth:
- Answer/End Call: Short press the MFB.
- Reject Call: Long press the MFB.

The built-in microphone allows for hands-free calling.
Maintenance
- Clean the headphones with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Avoid exposing the headphones to extreme temperatures, humidity, or direct sunlight.
- Store the headphones in the provided EVA carrying case when not in use to protect them from dust and damage.
- Do not attempt to disassemble or modify the headphones, as this will void the warranty and may cause damage.

The headphones fold compactly and fit into the included EVA case for easy storage and transport.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones do not power on. | Low battery. | Charge the headphones fully. |
| Cannot pair via Bluetooth. | Headphones not in pairing mode; device Bluetooth off; too far from device. | Ensure headphones are in pairing mode (flashing red/blue). Turn on device Bluetooth. Move headphones closer to device (within 9 meters). |
| No sound in wireless mode. | Volume too low; not connected; incorrect audio output selected on device. | Increase headphone and device volume. Re-pair headphones. Check device audio settings. |
| No sound in wired mode. | AUX cable not fully inserted; cable damaged; device volume too low. | Ensure AUX cable is securely connected at both ends. Try a different AUX cable. Increase device volume. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | Kids Bluetooth Headphones JH-711 |
| Connectivity Technology | Wireless (Bluetooth), Wired (3.5 mm Jack) |
| Bluetooth Version | 4.0 |
| Bluetooth Range | 9 Meters |
| Noise Control | Sound Isolation |
| Sensitivity | 94 dB (Max) |
| Battery Life | 15 Hours |
| Charging Time | 3 Hours |
| Item Weight | 187 Grams (6.6 ounces) |
| Product Dimensions | 5.51 x 3.15 x 5.31 inches |
| Material | Nylon, Stainless Steel (headband) |
| Carrying Case Material | EVA |
| Special Features | 3 Adjustable Volume Limited, Microphone, Durable, Flexible, Foldable, Wired & Wireless, Share Port, EVA Case |
Official Product Video
This video provides a visual overview of the SIMOLIO Bluetooth Headphones for Kids with Case JH-711, demonstrating its features and functionality.
Warranty and Support
SIMOLIO products are designed for quality and reliability. For specific warranty information, please refer to the warranty card included with your product or visit the official SIMOLIO website. If you encounter any issues or require technical assistance, please contact SIMOLIO customer support through their official channels.