Introduction
These Rainbow High wired headphones from OTL Technologies are designed for children aged 8 and up. They feature a comfortable over-ear design, a detachable microphone for voice chat, and a volume limit for safe listening. This manual provides instructions for setting up, operating, and maintaining your headphones.
Safety Information
- Volume Control: To prevent hearing damage, do not listen at high volume levels for extended periods. These headphones include a volume limit feature set to 90 decibels.
- Choking Hazard: Keep small parts, such as the detachable microphone, away from young children.
- Cleaning: Do not use abrasive cleaners or immerse the headphones in water. Clean with a soft, dry cloth.
- Operating Temperature: Avoid exposing the headphones to extreme temperatures or humidity.
Package Contents
Please check that all items are present in the package:
- Rainbow High Wired Headphones
- Detachable Microphone
Setup Instructions
- Connect the Headphones: Insert the 3.5mm audio jack of the headphones into the corresponding audio port on your device (smartphone, tablet, laptop, or game console).

Image: The 3.5mm audio jack is shown connected to the left ear cup, which features Rainbow High character artwork.
- Attach the Microphone: The microphone is detachable. Align the microphone's connector with the dedicated port on the left ear cup and gently push it in until it is securely seated. The microphone is adjustable for optimal positioning.

Image: A detailed view of the purple detachable boom microphone.
- Adjust the Headband: Extend or retract the adjustable padded headband to ensure a comfortable and secure fit on the user's head.

Image: The adjustable section of the headband, allowing for a custom fit.
Operating Instructions
- Listening to Audio: Once connected, play audio from your device. The headphones will reproduce the sound.
- Volume Control: The headphones feature a built-in volume limit of 90 decibels for safe listening. There may also be a remote control on the cable for basic volume adjustments, depending on the specific model variant.

Image: A switch on the ear cup allows selection between 85dB and 94dB volume limits, ensuring safe audio levels for children.
- Using the Microphone: If the microphone is attached, it can be used for voice chat in games, online learning, or video calls, provided your connected device supports microphone input through the 3.5mm jack.
- Comfort: The over-ear design and padded ear cushions provide comfort for extended listening sessions.
Maintenance and Care
- Cleaning: Wipe the headphones with a soft, dry cloth. Do not use liquid cleaners or solvents.
- Storage: When not in use, store the headphones in a clean, dry place away from direct sunlight and extreme temperatures.
- Cable Care: Avoid sharp bends or excessive pulling on the audio cable to prevent damage.
Troubleshooting
- No Sound:
- Ensure the 3.5mm audio jack is fully inserted into both the headphones and the device.
- Check the volume level on your connected device.
- Verify that the audio output on your device is set to the connected headphones.
- Test the headphones with a different device to rule out a device-specific issue.
- Microphone Not Working:
- Ensure the detachable microphone is securely attached to the headphone port.
- Check the microphone input settings on your connected device.
- Confirm that the application you are using (e.g., game, video call software) has microphone access enabled.
Specifications
| Model Name | Rainbow High |
| Model Number | RH0926 |
| Connectivity Technology | Wired |
| Headphones Jack | 3.5 mm Jack |
| Ear Placement | Over Ear |
| Form Factor | On Ear |
| Included Components | Detachable Microphone |
| Age Range (Description) | Kid (8 and up) |
| Material | Metal (implied for durability, plastic for housing) |
| Item Weight | 0.25 Kilograms (8.8 ounces) |
| Water Resistance Level | Not Water Resistant |
| Control Method | Remote (on cable) |
| Special Feature | Microphone Included, Volume Limited (90dB) |
| Compatible Devices | Cellphones, Laptops, Tablets, Game Consoles |
Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact OTL Technologies directly through their official website or customer service channels. Keep your proof of purchase for any warranty claims.





