Introduction
Thank you for choosing LOBKIN Kids Headphones Model S33. These headphones are designed with children in mind, featuring Bluetooth 6.0 connectivity, a safe volume limit of 85dB to protect young ears, and a comfortable, foldable design. This manual provides essential information for setup, operation, maintenance, and troubleshooting to ensure a safe and enjoyable experience.
Product Overview
The LOBKIN Kids Headphones S33 offer a blend of safety, comfort, and functionality. Key features include:
- HD Microphone: Ensures clear voice communication for online classes or calls.
- Immersive Sound Quality: Precision-tuned 40mm drivers deliver balanced audio for various content.
- Safe Volume Protection: Maximum volume limited to 85dB to safeguard children's hearing.
- Extended Playtime: Up to 55 hours of playback on a single charge (at 60% volume).
- CloudComfort Design: Foldable, adjustable headband with memory foam earcups and soft headpad for comfort.
- Dual-Mode Audio: Supports wireless Bluetooth 6.0 and wired 3.5mm AUX connection.

Image: LOBKIN Kids Headphones S33, highlighting the foldable and comfortable design.
What's in the Box
Upon unboxing your LOBKIN Kids Headphones S33, you should find the following items:
- 1 x LOBKIN Kids Bluetooth Headphones (Model S33)
- 1 x 3.5mm Audio Cable
- 1 x USB-C Charging Cable
- 1 x User Manual (this document)

Image: Packaging contents of the LOBKIN Kids Headphones S33.
Setup
Charging the Headphones
- Locate the USB-C charging port on the headphone earcup.
- Connect the provided USB-C charging cable to the headphone port.
- Connect the other end of the USB-C cable to a compatible USB power source (e.g., computer, wall adapter).
- The indicator light will illuminate during charging and turn off when fully charged. A full charge takes approximately 2 hours.
Note: Ensure the headphones are fully charged before first use for optimal battery life.
Bluetooth Pairing
- Ensure the headphones are charged and powered off.
- Press and hold the Power button on the headphone earcup for approximately 3 seconds until the indicator light flashes blue and red, indicating pairing mode.
- On your device (smartphone, tablet, laptop), go to Bluetooth settings and enable Bluetooth.
- Search for available devices and select "LOBKIN S33" from the list.
- Once connected, the indicator light on the headphones will turn solid blue or flash slowly.
Note: The Bluetooth range is up to 15 meters.
Wired Connection
To use the headphones in wired mode:
- Locate the 3.5mm audio cable port on the headphone earcup.
- Connect one end of the provided 3.5mm audio cable to the headphone port.
- Connect the other end of the 3.5mm audio cable to the audio jack of your device.
- The headphones will automatically switch to wired mode. No battery power is required for wired use.

Image: Close-up of the headphone earcup showing the charging and audio ports.
Operating Instructions
Basic Controls
- Power On/Off: Press and hold the Power button for 3 seconds.
- Play/Pause: Short press the Power button.
- Answer/End Call: Short press the Power button during an incoming call.
- Reject Call: Press and hold the Power button for 1 second during an incoming call.
- Volume Up: Short press the '+' button.
- Volume Down: Short press the '-' button.
- Next Track: Press and hold the '+' button for 1 second.
- Previous Track: Press and hold the '-' button for 1 second.
- Voice Assistant: Short press the Power button twice.

Image: Control layout and functions on the LOBKIN S33 headphones.
Safe Volume Feature
The LOBKIN S33 headphones are equipped with an 85dB volume limit to protect children's hearing. This feature is built-in and cannot be overridden, ensuring a safe listening experience even if the child attempts to increase the volume to maximum.

Image: Child wearing headphones, illustrating the 85dB safe volume limit.
Maintenance
- Cleaning: Use a soft, dry cloth to wipe the headphones. Do not use liquid cleaners or aerosols.
- Storage: When not in use, fold the headphones and store them in a cool, dry place, preferably in the provided carrying case, to prevent damage.
- Battery Care: To prolong battery life, avoid fully discharging the headphones frequently. Charge them regularly, even if not in constant use.
- Water Resistance: These headphones are not water resistant. Avoid exposure to water or excessive moisture.

Image: Folded headphones, ready for storage or travel.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones won't turn on. | Low battery. | Charge the headphones using the provided USB-C cable. |
| 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 the device. |
| No sound in Bluetooth mode. | Volume too low; device not connected; incorrect audio output selected on device. | Increase headphone and device volume. Re-pair headphones. Check device audio output settings. |
| No sound in wired mode. | Audio cable not fully inserted; faulty cable; incorrect audio output selected on device. | Ensure 3.5mm cable is fully inserted into both devices. Try a different 3.5mm cable. Check device audio output settings. |
| Microphone not working. | Microphone muted on device; application settings. | Check device and application microphone settings. Ensure the microphone is not physically obstructed. |
Specifications
| Feature | Detail |
|---|---|
| Brand | LOBKIN |
| Model Number | S33 |
| Ear Placement | Over Ear |
| Connectivity Technology | Wired, Wireless (Bluetooth) |
| Bluetooth Version | 6.0 |
| Bluetooth Range | 15 Meters |
| Headphone Jack | 3.5 mm Jack |
| Audio Driver Size | 40 Millimeters |
| Frequency Range | 20 Hz - 20,000 Hz |
| Sensitivity | 110 dB (Limited to 85dB for child safety) |
| Impedance | 32 Ohms |
| Battery Life | Up to 55 Hours (at 60% volume) |
| Battery Charge Time | 2 Hours |
| Control Type | Button Control |
| Microphone | Included |
| Additional Features | Adjustable Headband, Detachable Cable, Foldable, Lightweight |
| Item Weight | 175 Grams |
| Enclosure Material | Acrylonitrile Butadiene Styrene (ABS), Polycarbonate (PC) |
| Water Resistance Level | Not Water Resistant |
| Compatible Devices | Cellphones, Desktops, Laptops, Tablets |
Warranty and Support
LOBKIN provides an 18-month product quality service for these headphones. If any issues arise with the product itself during this period, LOBKIN offers free repair or replacement services.
For further assistance or warranty claims, please contact LOBKIN customer support:
- Email: support@lobkin.com
- Online Support: Visit the official LOBKIN store on Amazon for FAQs and contact options.

Image: LOBKIN brand information highlighting warranty and support.
Official Product Videos
The Ideal Holiday Gift for Children
Video: This video demonstrates the LOBKIN Kids Headphones S33 as a suitable gift for children, showcasing its design and appeal.
Fun and Safe Bluetooth Headphones for Kids
Video: This video highlights the fun and safety aspects of the LOBKIN Kids Headphones S33, showing children using them in various settings.





