iClever BTH12
iClever BTH12 Kids Bluetooth Headphones
User Manual
Introduction
Welcome to the iClever BTH12 Kids Bluetooth Headphones user manual. These headphones are designed with children in mind, offering a safe and enjoyable audio experience with features like volume limiting, colorful LED lights, and a durable build. This manual provides essential information on setup, operation, maintenance, and troubleshooting to ensure optimal use of your new headphones.

Figure 1: iClever BTH12 Kids Bluetooth Headphones (Blue)
What's in the Box
Your iClever BTH12 Kids Bluetooth Headphones package includes the following items:
- iClever BTH12 Kids Bluetooth Headphones (Blue)
- USB-C Charging Cable
- Detachable 3.5mm Audio Cable
- User Manual
Key Features
- 4 Colorful Lighting Modes: The headphones feature LED lights on both sides with four different effects (Revolving, Breathing, Quick Flash, Slow Flash) controlled by an independent button. These lights can be turned off to conserve battery.
- Stereo Sound & Volume Limited: Equipped with a 40mm speaker unit for rich bass and clear audio. Volume can be limited to 74 or 85 dBA using combination keys to protect children's hearing.
- 85H Playtime & USB C Charging: Enjoy up to 85 hours of playtime on a full charge. A quick 10-minute charge provides 7 hours of listening. Features a USB-C port for fast charging.
- Bluetooth 5.2 & Built-In Mic: Utilizes Bluetooth 5.2 for a stable wireless connection. The built-in microphone allows for hands-free calls, ideal for studying or playtime.
- Reinforced & Durable Material: Constructed with reinforced ABS and leather materials to withstand drops, twists, and everyday use by children.
- Over-Ear Soft Pads & Adjustable Headband: Designed for comfort during extended wear, with soft ear pads and an adjustable headband to fit various head sizes.

Figure 2: Over-Ear Design for Noise Isolation
Setup
Charging the Headphones
Before first use, fully charge your iClever BTH12 headphones. Connect the provided USB-C charging cable to the charging port on the headphone ear cup and the other end to a compatible USB power source (e.g., computer, wall adapter). The LED indicator will show charging status and turn off when fully charged.

Figure 3: USB-C Charging and 85-Hour Playtime
Bluetooth Pairing
- Ensure the headphones are powered off.
- Press and hold the power button until the LED indicator flashes blue and red, indicating pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "iClever-BTH12" from the list. Once connected, the LED indicator will turn solid blue.

Figure 4: Stable Bluetooth 5.2 Connection
Wired Connection (Optional)
If Bluetooth is not available or the battery is low, you can use the provided 3.5mm audio cable. Plug one end into the headphone's audio jack and the other end into your device's audio output.
Operating Instructions
Power On/Off
- To power on: Slide the power switch to the 'ON' position.
- To power off: Slide the power switch to the 'OFF' position.
Volume Control
The headphones feature volume control buttons on the ear cup:
- Press the '+' button to increase volume.
- Press the '-' button to decrease volume.
To switch between safe volume limits (74dBA or 85dBA), press the '+' and '-' buttons simultaneously. An audible prompt will confirm the selected volume limit.

Figure 5: SafeAudio Volume Limiting Feature
LED Lighting Modes
Control the colorful LED lights with the dedicated light mode button:
- Press the light button to cycle through the four lighting modes (Revolving, Breathing, Quick Flash, Slow Flash).
- Press and hold the light button to turn the LED lights off, which helps conserve battery life.

Figure 6: Four Colorful LED Lighting Modes
Music Playback & Calls
Use the multi-function button for media control and calls:
- Press once to Play/Pause music.
- Press once to Answer/End phone calls.
- Press and hold to Reject an incoming call.
- Double-press to Redial the last number.

Figure 7: Built-in Microphone for Hands-Free Communication
Maintenance
To ensure the longevity and optimal performance of your iClever BTH12 headphones, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe the headphones. For stubborn dirt, a slightly damp cloth can be used, but ensure no moisture enters the ports.
- Storage: When not in use, store the headphones in a cool, dry place. The foldable design allows for compact storage, protecting them from damage.
- Avoid Extreme Conditions: Do not expose the headphones to extreme temperatures, humidity, or direct sunlight.
- Handle with Care: While durable, avoid excessive force when adjusting the headband or folding the ear cups.

Figure 8: Enhanced Durability of Headband Arm
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones won't turn on | Low battery | Charge the headphones fully. |
| Cannot pair via Bluetooth | Headphones not in pairing mode / Device Bluetooth off | Ensure headphones are flashing blue/red. Turn device Bluetooth off and on. |
| No sound | Volume too low / Not connected / Wired cable loose | Increase headphone/device volume. Re-pair Bluetooth or re-insert audio cable. |
| LED lights not working | Lights turned off to save battery | Press the light button to activate lighting modes. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | BTH12-Blue |
| Connectivity Technology | Bluetooth 5.2 |
| Wireless Range | 11 Meters (33 Feet) |
| Audio Driver Size | 40 Millimeters |
| Battery Life (Playtime) | 85 Hours (lights off) / 7 Hours (10 min charge) |
| Charging Time | 3 Hours (full charge) |
| Headphones Jack | 3.5 mm Jack |
| Noise Control | Passive Noise Cancellation |
| Material | Leather, Acrylonitrile Butadiene Styrene (ABS) |
| Item Weight | 7.04 ounces |
| Product Dimensions | 6.1 x 2.64 x 7.09 inches |
Warranty & Support
iClever products come with a standard warranty. For detailed warranty information, product support, or to register your product, please visit the official iClever website or contact their customer service directly. Contact information can typically be found on the product packaging or the official website.
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