iClever BTH21
iClever Kids Bluetooth Headphones
User Manual
Model: BTH21
Introduction
The iClever Kids Bluetooth Headphones (Model BTH21) are designed to provide a safe and enjoyable audio experience for children. Featuring light-up cat ears, long battery life, and volume limiting technology, these headphones are suitable for various activities including travel and entertainment.

Image: Front view of the iClever Kids Bluetooth Headphones, showcasing their purple and pink design with illuminated cat ears.
What's in the Box
Your iClever Meow Cookies Kids Bluetooth Headphones package includes the following items:
- 1 × Meow Cookies Kids Bluetooth Headphones
- 1 × Exquisite stickers
- 1 × USB C Fast Charging Cable
- 1 × Detachable 3.5mm Audio Cable
- 1 × User Manual (this document)

Image: The product box, headphones, USB-C charging cable, 3.5mm audio cable, and a sheet of stickers, laid out on a pink background.
Setup
Charging the Headphones
Before first use, fully charge your headphones. A full charge provides up to 60 hours of playtime (with lights off). A quick 10-minute charge can provide over 7 hours of playtime.
- Locate the USB-C charging port on the headphone earcup.
- Connect the provided USB-C Fast Charging Cable to the headphones and a compatible USB power source.
- The indicator light will show charging status (refer to the physical user manual for specific light indicators).

Image: Visual representation of the headphones' 60-hour battery life and 10-minute fast charging capability, highlighting Bluetooth 5.3 connectivity.
Bluetooth Pairing
To connect your headphones wirelessly via Bluetooth 5.3:
- Ensure the headphones are charged and powered on.
- Activate Bluetooth on your device (e.g., smartphone, tablet, laptop).
- Search for "iClever BTH21" or similar in your device's Bluetooth settings.
- Select the headphones to pair. A successful connection will be indicated by a sound prompt or light change.
Wired Connection
For a wired connection, use the detachable 3.5mm audio cable:
- Plug one end of the 3.5mm audio cable into the headphone's audio jack.
- Plug the other end into your device's 3.5mm audio port.
- The headphones will automatically switch to wired mode.
Operating Instructions
Button Controls
The headphones feature intuitive button controls on the earcup for easy management of audio and calls:
- Power Button: Press and hold to power on/off.
- Volume Up (+): Short press to increase volume.
- Volume Down (-): Short press to decrease volume.
- Multi-function Button (Play/Pause/Call):
- Single press to play/pause music.
- Single press to answer/end calls.
- Press and hold to reject calls.
- Next Track: Press and hold Volume Up.
- Previous Track: Press and hold Volume Down.
Light-Up Cat Ears
The cat ears feature dazzling RGB lights with multiple modes:
- Single Click: Slow Flash mode.
- Double Click: Quick Flash mode.
- Triple Click: Static Light mode.
- To turn off the lights, continue pressing the light button until they deactivate.

Image: The headphones displaying their "Dreamy Candy-Colored Lights" feature, illustrating single, double, and triple click actions for different light patterns.
Safe Volume Technology
The headphones incorporate iClever's patented Safe-Volume Technology to protect children's hearing. They offer two volume limits:
- 85dBA (Play Mode): Standard safe listening level for general use.
- 74dBA (Study Mode): Lower volume level for extended listening in quieter environments. To switch to 74dBA, press the "+" and "-" keys together.

Image: A child wearing the headphones, emphasizing the "Safe Volume Tech (3rd Generation)" feature and a graph illustrating how the technology reduces high-frequency sound to protect hearing.
Video: An official product video from iClever demonstrating the features of the Meow Cookies Cat Headphones, including light modes, volume control, and design aspects.
Maintenance
Proper care will extend the life of your headphones:
- Cleaning: Use a soft, dry cloth to wipe the headphones. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the headphones in a cool, dry place. The foldable design allows for compact storage.
- Water Resistance: These headphones are not water resistant. Avoid exposure to liquids.
- Handling: While durable, avoid excessive force when adjusting or folding the headphones.

Image: A child wearing the headphones, illustrating their kid-friendly, BPA-free materials, along with features like adjustable headband, foldable design, snug-fit earcups, and 110° swiveling capability for comfort and portability.
Troubleshooting
If you encounter issues with your iClever Kids Bluetooth Headphones, try the following solutions:
- Headphones not turning on: Ensure the headphones are fully charged.
- Cannot pair via Bluetooth:
- Make sure Bluetooth is enabled on your device and the headphones are in pairing mode.
- Ensure the headphones are within the 10-meter Bluetooth range.
- Forget the device on your Bluetooth list and try pairing again.
- No sound:
- Check the volume level on both the headphones and your connected device.
- Ensure the headphones are properly paired or the 3.5mm audio cable is securely connected.
- Test with a different audio source or device.
- Lights not working: Press the light button on the earcup to cycle through light modes or turn them on.
Specifications
| Feature | Detail |
|---|---|
| Model Name | Meow Cookies |
| Item Model Number | BTH21 |
| Connectivity Technology | Wireless (Bluetooth), Wired (3.5mm Jack) |
| Bluetooth Version | 5.3 |
| Bluetooth Range | 10 Meters |
| Battery Life | 60 Hours (lights off) |
| Charging Time | Approx. 10 minutes for 7 hours playtime |
| Safe Volume Limits | 74/85dBA |
| Audio Driver Size | 40 Millimeters |
| Frequency Range | 20 Hz - 20,000 Hz |
| Material | Leather, Acrylonitrile Butadiene Styrene (ABS) |
| Item Weight | 159 Grams (5.6 ounces) |
| Product Dimensions | 5.51 x 2.91 x 5.83 inches |
| Manufacturer | iClever |
Warranty and Support
For warranty information, technical support, or any inquiries regarding your iClever Kids Bluetooth Headphones, please refer to the official iClever website or contact their customer service directly.
You can also find the official User Manual in PDF format for detailed instructions: Download User Manual (PDF)
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.







