1. Important Safety Information
Please read all safety instructions carefully before using this appliance. Failure to follow these instructions may result in electric shock, fire, or personal injury.
- Burn Hazard: Surfaces become extremely hot during use. Avoid direct contact with skin, especially the scalp, ears, and neck.
- Electric Shock Risk: Do not use this appliance near bathtubs, showers, basins, or other vessels containing water. If the appliance falls into water, unplug it immediately. Do not reach into the water.
- Fire Risk: Unplug the appliance immediately after use and when not in use. Do not leave the appliance unattended when plugged in. Keep away from flammable materials.
- Children: Keep this appliance out of reach of children. This appliance is not intended for use by persons 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 the appliance if the cord or plug is damaged. If the appliance is not working as it should, has been dropped, damaged, left outdoors, or dropped into water, do not use it and contact customer support.
- Maintenance: Do not attempt to repair the appliance yourself. Refer all servicing to qualified service personnel.
2. Product Overview
The Nicebay HS070Bi is a versatile 2-in-1 hair styling tool designed for both straightening and curling. It features titanium plates, adjustable temperature settings, and negative ion technology for smooth, shiny results.

Figure 2.1: Nicebay HS070Bi 1-inch Titanium Flat Iron

Figure 2.2: Key Features of the Nicebay HS070Bi
Key Features:
- 1-inch Titanium Plates: Provides even heat distribution and reduces hair damage.
- 5 Temperature Settings: Adjustable from 290°F to 450°F to suit various hair types.
- LCD Display: Clearly shows the real-time temperature.
- Negative Ion Technology: Helps to eliminate static electricity, repair damaged hair scales, and lock in moisture for smooth, shiny hair.
- PTC Fast Heating Technology: Ensures rapid heat-up for quick styling.
- 2-in-1 Design: Capable of both straightening and curling hair.
- 360° Swivel Cord: Prevents tangling during use.
- Safety Lock: For secure storage and travel.
- 60-Minute Auto-Off: Enhances safety by automatically shutting down after 60 minutes of inactivity.
- Dual Voltage (100-240V): Travel-friendly for international use.
3. Setup
- Unpack: Carefully remove the flat iron from its packaging. Ensure all components are present and undamaged.
- Inspect: Check the appliance and power cord for any visible damage. Do not use if damaged.
- Plug In: Insert the power plug into a suitable electrical outlet (100-240V).
- Unlock (if applicable): If the flat iron has a safety lock, slide it to the unlocked position to allow the plates to open.
4. Operating Instructions
4.1 Power On and Temperature Adjustment
- Power On: The flat iron typically powers on by rotating the adjustment function at the base of the handle. The LCD display will illuminate.
- Adjust Temperature: Rotate the adjustment ring at the base of the handle to select your desired temperature. The LCD display will show the temperature increasing or decreasing. The available settings range from 290°F to 450°F.
- 290°F - 330°F: Recommended for thin/fine hair.
- 370°F: Recommended for normal hair.
- 410°F - 450°F: Recommended for thick hair.
- Heat Up: Allow the flat iron to heat up to the selected temperature. The PTC heating technology ensures rapid heating.

Figure 4.1: Temperature Adjustment and LCD Display
4.2 Hair Straightening
- Ensure hair is clean, dry, and detangled.
- Divide hair into small, manageable sections.
- Take one section of hair and place it between the heating plates, close to the roots.
- Gently close the plates and glide the flat iron slowly down the hair section from root to tip. Do not hold the iron in one place for too long to avoid heat damage.
- Repeat for all sections until desired straightness is achieved.
4.3 Hair Curling
- Ensure hair is clean, dry, and detangled.
- Divide hair into small, manageable sections.
- Take one section of hair and clamp it between the plates, about halfway down the hair shaft.
- Rotate the flat iron 180 degrees away from your face, then slowly pull it down through the hair section to create a curl.
- Release the hair and allow the curl to cool before styling.
- Repeat for all sections until desired curls are achieved.

Figure 4.2: 2-in-1 Straightening and Curling Functionality
4.4 Negative Ion Technology
The Nicebay HS070Bi utilizes negative ion technology to enhance hair health and appearance. As you style, negative ions are released, which help to:
- Reduce static electricity and frizz.
- Seal the hair cuticle, locking in natural moisture.
- Result in smoother, shinier, and healthier-looking hair.

Figure 4.3: Negative Ion Technology in Action
4.5 Power Off
To turn off the flat iron, rotate the adjustment ring back to the 'OFF' position or hold the power button (if applicable) until the display turns off. The appliance features a 60-minute automatic shutdown for safety.
5. Maintenance
Proper maintenance ensures the longevity and optimal performance of your Nicebay HS070Bi flat iron.
- Cleaning: Ensure the appliance is unplugged and completely cool before cleaning. Wipe the exterior with a soft, damp cloth. Do not use abrasive cleaners or harsh chemicals.
- Plate Cleaning: Gently wipe the titanium plates with a soft, slightly damp cloth to remove any product residue. Ensure plates are completely dry before next use.
- Storage: Store the flat iron in a cool, dry place. Use the safety lock to keep the plates closed for compact storage and to protect the plates from damage. The 360° swivel cord can be wrapped neatly around the base.
- Cord Care: Do not wrap the power cord tightly around the appliance, as this can damage the cord. Avoid twisting or kinking the cord.
6. Troubleshooting
If you encounter any issues with your Nicebay HS070Bi, please refer to the following common troubleshooting steps:
- Appliance Not Turning On:
- Ensure the power cord is securely plugged into a working electrical outlet.
- Check if the power outlet is functional by plugging in another appliance.
- Verify that the temperature adjustment ring is rotated to an 'ON' temperature setting.
- Appliance Not Heating Up:
- Confirm the appliance is powered on and a temperature is selected.
- Allow sufficient time for the appliance to reach the set temperature (PTC heating is fast, but a few seconds are needed).
- Hair Pulling/Snagging:
- Ensure hair is thoroughly detangled before use.
- Take smaller sections of hair.
- The 3D floating plates are designed to prevent pulling; ensure they are clean and free of residue.
- Hair Not Straightening/Curling Effectively:
- Increase the temperature setting if your hair type is thick or resistant.
- Ensure hair is completely dry before styling.
- Pass the flat iron through hair sections more slowly.
If the issue persists after attempting these steps, please contact Nicebay customer service for further assistance.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | HS070Bi |
| Plate Material | Titanium |
| Temperature Settings | 5 (290°F - 450°F) |
| Voltage | 100-240V (Dual Voltage) |
| Auto-Off Function | 60 minutes |
| Product Dimensions | 11.8 x 1.3 x 1.3 inches |
| Item Weight | 14.08 ounces |
| Manufacturer | Ningbo Jufa Electric Appliance Co., Ltd. |

Figure 7.1: Product Dimensions
8. Product Video Guide
Watch the official product video for a visual guide on the features and usage of the Nicebay HS070Bi flat iron.
Video 8.1: Nicebay Hair Straightener and Curler Fast Heating. This video demonstrates the key features, temperature adjustment, and styling capabilities of the flat iron.
9. Warranty and Support
Nicebay is committed to providing high-quality products and excellent customer service.
9.1 Warranty Information
The Nicebay HS070Bi Hair Straightener Flat Iron comes with a 12-month guarantee from the date of purchase. This warranty covers manufacturing defects and issues arising from normal use.
Please retain your proof of purchase for warranty claims.
9.2 Customer Support
If you have any questions, concerns, or require assistance with your product, please do not hesitate to contact Nicebay customer service. We offer 24-hour online customer service to ensure a unique, superior, and thoughtful support experience.
For support, please refer to the contact information provided with your product packaging or visit the official Nicebay website.