Introduction
Thank you for choosing the SIMOLIO Bluetooth Kids Headphones. These foldable wireless headphones are designed with children's safety and comfort in mind, featuring a volume limiter to protect sensitive ears and a durable hard case for easy portability. They offer both Bluetooth and wired connectivity, making them versatile for various uses, including school, travel, and home entertainment.
Safety Information
To ensure safe usage and prevent hearing damage, please observe the following guidelines:
- The headphones are equipped with a 3-level volume limiter to protect children's hearing. This feature is effective in both wired and wireless modes.
- Avoid prolonged listening at high volumes, even within the limited range.
- Do not use the headphones in situations where the inability to hear ambient sounds could be dangerous, such as while walking near traffic.
- Keep the headphones and accessories out of reach of small children to prevent choking hazards.
Package Contents
Please check the package to ensure all items are present:
- SIMOLIO Bluetooth Kids Headphones (Mint)
- EVA Hard Case
- 3.5mm Audio Cable
- USB Charging Cable

Image: The SIMOLIO Bluetooth Kids Headphones in mint color, shown alongside their protective blue EVA hard case. This image illustrates the main product and its primary storage accessory.
Product Overview
Familiarize yourself with the key features and components of your SIMOLIO headphones.

Image: A visual representation highlighting the main functionalities of the SIMOLIO headphones: Bluetooth connectivity, wired operation, hands-free calling via the built-in microphone, and the audio sharing feature.

Image: The SIMOLIO headphones are shown connected to a laptop using the detachable 3.5mm audio cable, demonstrating their wired compatibility.

Image: This diagram illustrates the adjustable nature of the headphone headband, showing its length from 41cm to 45cm. It also highlights the optional T-shaped headbands that can be added for a better fit on smaller heads, along with ear cup dimensions (7.5cm diameter, 3.5cm depth).

Image: This visual demonstrates the foldable design of the headphones for compact storage within the EVA case. It also shows how the headband, containing memory elastic metal strips, can be reshaped to fit individual head contours for optimal comfort.
Setup
Bluetooth Pairing
- Ensure the headphones are charged.
- Press and hold the power button on the headphones until the LED indicator flashes, indicating pairing mode.
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "SIMOLIO JH-712" (or similar name) from the list of found devices.
- Once connected, the LED indicator will stop flashing and remain solid blue.
Wired Connection
The headphones can be used in wired mode even if the battery is depleted.
- Locate the 3.5mm audio jack on the headphones.
- Insert one end of the provided 3.5mm audio cable into the headphone jack.
- Insert the other end of the cable into the audio output jack of your device.
- The headphones will automatically switch to wired mode.
Operating Instructions
Volume Control
Use the Vol+ and Vol- buttons on the ear cup to adjust the listening volume. Remember that the headphones have a built-in volume limiter for hearing protection.
Call Functions (Bluetooth Mode)
The integrated microphone allows for hands-free calling:
- Press the Multi-function button (usually the power button) once to answer an incoming call.
- Press the Multi-function button once again to end a call.
- Press and hold the Multi-function button to reject an incoming call.
Audio Sharing
The headphones feature an extra sharing jack, allowing two users to listen to the same audio source simultaneously.
- Connect the first SIMOLIO headphone to your audio source (via Bluetooth or wired).
- Connect a second headphone (any brand with a 3.5mm jack) to the sharing jack located on the right ear cup of the first SIMOLIO headphone using a 3.5mm audio cable.
- Both headphones will now play the same audio.

Image: This image depicts two children sharing audio, with one SIMOLIO headphone connected to a device and another headphone connected to the first via the audio sharing port, enabling a shared listening experience.
Music Playback Control (Bluetooth Mode)
- Press the Multi-function button once to Play/Pause music.
- Press the Next Track button (usually labeled with a right arrow) to skip to the next song.
- Press the Previous Track button (usually labeled with a left arrow) to go to the previous song.
Maintenance
Cleaning
Wipe the headphones with a soft, dry cloth. Do not use abrasive cleaners or immerse the headphones in water.
Storage
When not in use, fold the headphones and store them in the provided EVA hard case to protect them from dust, scratches, and impacts. Store in a cool, dry place away from direct sunlight and extreme temperatures.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from headphones. | Headphones not powered on, not paired (Bluetooth), cable not fully inserted (wired), device volume too low. | Ensure headphones are powered on and charged. Re-pair Bluetooth. Check cable connection. Increase device volume. |
| Cannot connect via Bluetooth. | Headphones not in pairing mode, device Bluetooth off, too far from device, interference. | Put headphones in pairing mode. Enable Bluetooth on device. Move closer to device. Reduce interference from other wireless devices. |
| Low volume even at maximum setting. | Volume limiter is active (normal operation for child safety). | This is a safety feature. The volume is intentionally limited to protect hearing. Ensure the source device's volume is at an appropriate level. |
| Battery drains quickly. | Old battery, frequent high volume use, long usage sessions. | Ensure full charge before use. Reduce listening volume if possible. Consider using wired mode for extended periods. |
Specifications
- Model Number: JH-712
- Brand: SIMOLIO
- Color: Mint
- Connectivity: Bluetooth and Wired (3.5mm Jack)
- Ear Placement: On-Ear
- Form Factor: Over-Ear
- Noise Control: Noise Isolation
- Batteries: 1 Lithium-Polymer battery (included)
- Product Dimensions: 14 x 8 x 13.5 cm
- Weight: 260 Grams
- Age Range (Description): Child
Warranty and Support
For warranty information and customer support, please refer to the documentation included with your purchase or visit the official SIMOLIO website. Specific warranty terms may vary by region and retailer.





