Introduction
Thank you for choosing SIMOLIO Kids Bluetooth Headphones. These headphones are designed with children's safety and comfort in mind, featuring volume limiting technology to protect young ears. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and a long lifespan for your headphones.

Image: A pair of SIMOLIO Kids Bluetooth Headphones in mint and pink, accompanied by their respective hard carrying cases.
Package Contents
Please check the box for the following items:
- 2 x Bluetooth Headphones
- 2 x Charging Cables
- 2 x AUX Cables
- 2 x Carrying EVA Cases
- 1 x User Manual (this document)
Key Features
- 3-Level Switchable Volume Limiting: Protects vulnerable ears with adjustable limits (75dB for toddlers, 85dB for kids, 94dB for adults). Effective in both wired and wireless modes.
- Flexible and Durable Design: Adjustable headband with memory stainless steel strips ensures impressive durability and flexibility, designed to withstand active use.
- Wired and Wireless Modes: Offers Bluetooth connectivity for wireless freedom and a standard 3.5mm headphone jack for wired use, providing a backup when the battery is depleted.
- Built-in Microphone: Enables hands-free calling, allowing users to answer calls and manage music playback directly from the headphones.
- Audio Sharing Jack: An additional sharing jack on the right earcup allows another headphone to plug in, enabling shared listening experiences.
- Foldable and Portable: Compact design allows for easy folding and storage in the included EVA carrying case, ideal for travel and school.
- Long Battery Life: Up to 15 hours of battery life on a single charge, suitable for extended use during travel or learning sessions.

Image: Visual representation of the 3-level volume limiting feature, showing recommended decibel levels for different age groups.

Image: A person demonstrating the flexibility of the headphone headband by twisting and bending it.

Image: Two children wearing headphones, with one headphone connected to a laptop and the other connected to the first headphone via the audio sharing jack.

Image: A visual sequence demonstrating how the headphones fold compactly and fit into their protective EVA carrying case.
Product Overview Video
Video: An official product video from Simolio Direct showcasing the key features of the JH-711 headphones, including volume limiting, hands-free calling, dual modes (wireless/wired), audio sharing, flexibility, durability, and foldable design for portability.
Setup
Charging the Headphones
Before first use, fully charge the headphones. Connect the provided USB charging cable to the charging port on the headphone and to a USB power source (e.g., computer, wall adapter). The LED indicator will show charging status and turn off when fully charged (approximately 3 hours).
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.
- Once connected, the LED indicator will turn solid blue.
Wired Connection
To use the headphones in wired mode, simply plug one end of the provided 3.5mm AUX cable into the headphone's audio jack and the other end into your audio device. This mode works even if the headphone battery is depleted.
Operating Instructions
Power On/Off
- To Power On: Press and hold the MFB for 3 seconds.
- To Power Off: Press and hold the MFB for 5 seconds.
Volume Adjustment
- Use the volume buttons (+/-) on the earcup to adjust the listening volume.
- To change the volume limiting level (75dB/85dB/94dB), locate the dedicated switch on the earcup and slide it to your desired setting.
Music Playback
- Play/Pause: Short press the MFB.
- Next Track: Long press the "Next" button.
- Previous Track: Long press the "Previous" button.
Call Management
- Answer/End Call: Short press the MFB.
- Reject Call: Long press the MFB.
Audio Sharing
To share audio with another headphone, connect one end of a 3.5mm AUX cable to the sharing jack on the right earcup of the SIMOLIO headphone and the other end to the audio input of the second headphone. This allows two users to listen to the same audio source simultaneously.
Maintenance
Cleaning
Wipe the headphones with a soft, dry cloth. Do not use harsh chemicals or abrasive materials. Ensure no liquid enters the ports.
Storage
When not in use, fold the headphones and store them in the provided EVA carrying case to protect them from dust, scratches, and impacts. Store in a cool, dry place away from extreme temperatures.
Battery Care
To prolong battery life, avoid fully discharging the headphones frequently. Charge them regularly, even if not in constant use. Do not expose the battery to high temperatures.
Troubleshooting
- Headphones not turning on: Ensure the headphones are fully charged. Connect them to a power source and wait a few minutes before attempting to power on again.
- Cannot pair via Bluetooth:
- Ensure the headphones are in pairing mode (LED flashing blue and red).
- Make sure Bluetooth is enabled on your device and it is within range (approx. 30 feet).
- Forget previous pairings on your device and try pairing again.
- Restart both the headphones and your device.
- No sound or low volume:
- Check the volume level on both the headphones and your connected device.
- Verify the volume limiting switch is set to an appropriate level (e.g., 85dB or 94dB if sound is too low).
- If using wired mode, ensure the 3.5mm AUX cable is fully inserted into both jacks.
- Microphone not working:
- Ensure the headphones are properly connected via Bluetooth.
- Check your device's audio input settings to ensure the headphone microphone is selected.
- Test the microphone with a different application or device.
Specifications
| Feature | Description |
|---|---|
| Model Name | Kids Bluetooth Headphones JH-711PM |
| Connectivity Technology | Wireless (Bluetooth), Wired (3.5mm Jack) |
| Bluetooth Version | 4.0 |
| Bluetooth Range | 30 Feet |
| Volume Limiting Levels | 75dB, 85dB, 94dB |
| Battery Life | Up to 15 Hours |
| Charging Time | Approx. 3 Hours |
| Material | Nylon, Stainless Steel, EVA (case) |
| Ear Placement | Over Ear |
| Noise Control | Sound Isolation |
| Product Dimensions | 5.51 x 3.15 x 5.31 inches |
| Item Weight | 1.58 pounds |

Image: Detailed measurements of the headphone headband and earcup dimensions, illustrating how the headphones fit different head sizes.
Warranty and Support
SIMOLIO products are designed for quality and reliability. For any questions, technical support, or warranty inquiries, please refer to the contact information provided with your purchase or visit the official SIMOLIO brand store online. Keep your proof of purchase for warranty claims.
Visit the SIMOLIO Store for more products and support.





