1. Introduction
Thank you for choosing the Bopcal Cordless Hair Straightener Brush. This portable styling tool is designed for convenience and efficiency, allowing you to achieve smooth, frizz-free hair anywhere. Please read this manual thoroughly before use to ensure safe and optimal performance.
2. Safety Information
WARNING: Failure to follow these safety instructions may result in fire, electric shock, injury, or damage to the product.
- Burn Hazard: Surfaces of the brush get extremely hot during use. Avoid direct contact with skin, especially the scalp, ears, and neck.
- Electric Shock Risk: Keep the device away from water. Do not use near bathtubs, sinks, showers, or any other water sources. Do not handle with wet hands.
- Fire Risk: Unplug the device when not in use. Do not leave it unattended when plugged in or heating. Ensure the device is placed on a heat-resistant surface.
- Battery Safety: The device contains a 10,000mAh lithium-ion battery. Do not overcharge or expose to extreme temperatures (above 45°C/113°F or below 0°C/32°F). Do not disassemble, crush, or puncture the battery.
- Children: Keep out of reach of children. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
- Damage: Do not use if the device or charging cable is damaged. Contact customer support for assistance.
3. Package Contents
Verify that all items are present in your package:
- Bopcal Cordless Hair Straightener Brush
- USB-C Charging Cable
- Travel Pouch
- Hair Clips (2)
- User Manual
4. Product Overview
Familiarize yourself with the components of your Bopcal Cordless Hair Straightener Brush.

- Ceramic Coated Heating Bristles: Designed to glide smoothly through hair, providing even heat distribution.
- Anti-Accidental Touch Switch: Prevents unintended power-on or temperature changes.
- Ionic Outlet: Releases 3 million negative ions to reduce frizz and enhance shine.
- Power Indicator Light: Shows device status (on/off, charging).
- Power Button: To turn the device on/off and adjust settings.
- Temperature Indicator: Displays the selected heat level.
- Kid Mode Indicator: Indicates when the device is set to a lower, safer temperature for children's hair.
- Type-C Interface: For charging the device.
- Charging Port: For use with the charging cable.
- Safety Lock: Slide to lock/unlock the device for safe travel and storage.
5. Setup
5.1 Charging the Device
Before first use, fully charge your Bopcal Cordless Hair Straightener Brush. The device features a 10,000mAh battery for long-lasting performance and supports fast charging up to 45W (adapter not included).
- Connect the USB-C charging cable to the device's Type-C interface.
- Connect the other end of the cable to a compatible USB power adapter (e.g., phone charger, power bank, computer USB port).
- The power indicator light will flash white during charging. A steady white light indicates a full charge. An orange indicator means the battery is 20% or below.

5.2 Unlocking the Device
Before use, ensure the safety lock is in the unlocked position. Slide the lock switch to unlock the device.
6. Operating Instructions
6.1 Powering On and Temperature Selection
- Ensure the device is unlocked.
- Press and hold the power button for a few seconds to turn on the device. The power indicator will light up.
- Press the power button repeatedly to cycle through the temperature settings. The corresponding temperature indicator light will illuminate.
- Allow the device to preheat for 3-4 minutes to reach the desired temperature for optimal results.

6.2 Recommended Temperature Settings
| Temperature (°C/°F) | Hair Type |
|---|---|
| 230°C / 450°F | Thick/Curly/Wavy Hair |
| 210°C / 410°F | Slightly Curly Hair |
| 180°C / 360°F | Dyed/Dark Color Hair |
| 150°C / 300°F | Thin/Fine/Bleached Hair |
| 120°C / 250°F | Soft/Thin Hair / For Children |
6.3 Hair Straightening Process
This brush is designed for 3-in-1 styling: straight, wavy, or voluminous. The ion-emitting feature with 3 million negative ions helps reduce frizz and boost shine, while the keratin coating adds a protective layer.
- Ensure your hair is dry and detangled. You may use the included hair clips to section your hair.
- Take a small section of hair (approximately 1.5 inches wide).
- Position the brush with the teeth facing outwards.
- Slowly glide the brush from the roots to the tips of your hair.
- Repeat 2-3 times per section until desired results are achieved.
- For thick hair, you may need to use smaller sections.


6.4 Using as a Power Bank
The Bopcal Cordless Hair Straightener Brush can also function as a power bank to charge your mobile devices in an emergency.
- Connect your device's charging cable to the USB-A output port on the straightener brush.
- The straightener brush will begin charging your device.

7. Maintenance
7.1 Cleaning
- Ensure the device is turned off and unplugged (if charging) and has completely cooled down before cleaning.
- Use a soft, damp cloth to wipe the exterior of the brush.
- Gently remove any hair strands or debris from the bristles. Do not use harsh chemicals or abrasive cleaners.
7.2 Storage
Store the device in a cool, dry place, away from direct sunlight and moisture. Use the provided travel pouch for protection when not in use or during travel. Ensure the safety lock is engaged before storing.
8. Troubleshooting
- Device not turning on: Ensure the device is charged and the safety lock is in the unlocked position. Press and hold the power button for a few seconds.
- Not heating up: Check if the device is powered on and a temperature setting is selected. Allow 3-4 minutes for preheating.
- Hair not straightening effectively: Ensure hair is dry and detangled. Use smaller sections of hair and glide the brush slowly from roots to tips. Verify the correct temperature setting for your hair type.
- Battery draining quickly: Ensure the device is fully charged before use. Avoid using it as a power bank excessively if you need it for hair styling.
- Charging issues: Ensure the USB-C cable is securely connected to both the device and the power source. Try a different power adapter or cable.
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | JDS1H1 |
| Product Dimensions | 12.99 x 1.77 x 1.77 inches |
| Item Weight | 11.2 ounces |
| Battery Capacity | 10,000mAh |
| Max Temperature Setting | 230°C (450°F) |
| Heating Time | Approximately 3 minutes to reach operating temperature |
| Negative Ions | 3 Million |
| Hair Type Compatibility | All hair types (1A-3C) |
| Power Source | Battery Powered (USB-C charging) |
| Material Type | Plastic (with ceramic coated bristles) |
10. Warranty and Support
Bopcal offers a 2-year extra warranty coverage for this product. For any questions, technical support, or warranty claims, please contact Bopcal customer service. Refer to the contact information provided in your product packaging or visit the official Bopcal website.