1. Introduction
The T3 SinglePass Curl X Extra-Long Barrel Curling Iron is designed to create lasting curls and waves with advanced heat precision. This manual provides essential information for safe and effective use, setup, operation, maintenance, and troubleshooting.

Image 1.1: T3 SinglePass Curl X Extra-Long Barrel 1.25" Curling Iron in White/Rose Gold.
2. Important Safety Information
To reduce the risk of burns, electrocution, fire, or injury to persons:
- Always unplug the appliance immediately after using.
- Do not use while bathing or in a shower.
- Do not place or store appliance where it can fall or be pulled into a tub or sink.
- Do not place in or drop into water or other liquid.
- Do not reach for an appliance that has fallen into water. Unplug immediately.
- This appliance should not be used by, on, or near children or individuals with certain disabilities.
- Use this appliance only for its intended use as described in this manual. Do not use attachments not recommended by the manufacturer.
- Never operate this appliance if it has a damaged cord or plug, if it is not working properly, or if it has been dropped or damaged, or dropped into water.
- Keep the cord away from heated surfaces. Do not wrap the cord around the appliance.
- Never use while sleeping.
- Never drop or insert any object into any opening.
- Do not use outdoors or operate where aerosol (spray) products are being used or where oxygen is being administered.
- Do not use an extension cord with this appliance.
- The appliance is hot when in use. Do not let eyes or bare skin touch heated surfaces.
- Do not place the heated appliance directly on any surface while it is hot or plugged in.
- Never block the air openings of the appliance or place it on a soft surface, such as a bed or couch, where the air openings may be blocked. Keep the air openings free of lint, hair, and the like.
3. Product Features
The T3 SinglePass Curl X is engineered with advanced technology and design for optimal styling results:
- Extra-Long Barrel: Styles wide sections, long hair, or hard-to-reach areas efficiently in one pass. The 1.25" clip barrel creates soft, lived-in curls and waves.
- Digital T3 SinglePass Technology: Ensures advanced heat precision with no hot or cool spots across the barrel for fast, lasting results. A smart microchip digitally regulates temperature to keep heat fluctuations in check.
- 9 Heat Settings: Offers healthy styling for all hair types and textures, allowing for customized heat application.
- CeraGloss Ceramic Barrel: Glides effortlessly through hair to smooth and boost shine as you style.
- ProGlide Clip Design: Features a super-responsive clip lever for effortless control with a smooth glide, preventing hair snagging.
- Cool Tip: Designed with a ventilated tip for a comfortable grip that stays cool to the touch, providing extra support during styling.
- Automatic Shut-off: For safety, the appliance features a 1-hour automatic shut-off.

Image 3.1: Key features of the T3 SinglePass Curl X, highlighting speed, shine, and smart technology.

Image 3.2: The T3 SinglePass Curl X is available in multiple barrel sizes for varied curl styles.

Image 3.3: Different barrel sizes create distinct curl types: 1" for defined, 1.25" for soft, and 1.5" for loose curls.
4. Setup
- Unpack: Carefully remove the curling iron and all accessories from the packaging.
- Inspect: Check the appliance for any signs of damage. Do not use if damaged.
- Plug In: Insert the power cord into a suitable electrical outlet. Ensure the voltage matches the appliance requirements.
5. Operating Instructions
5.1 Powering On and Adjusting Heat
- Power On: Press and hold the power button located on the handle until the indicator lights illuminate.
- Select Heat Setting: Rotate the SmartTwist Dial to select one of the 9 heat settings. The indicator lights will blink until the desired temperature is reached, then remain solid.

Image 5.1: The SmartTwist Dial allows selection of 9 precise heat settings for various hair types.
5.2 Curling Technique
For best results, ensure hair is dry and detangled before styling.
- Section Hair: Divide your hair into 1-2 inch sections.
- Clamp Hair: Clamp the ends of a hair section with the ProGlide clip.
- Roll Up: Roll the curling iron up towards the roots, ensuring the hair is evenly wrapped around the CeraGloss ceramic barrel. Utilize the cool tip for added control.
- Hold: Hold for a few seconds (adjust hold time based on desired curl intensity and hair type).
- Release: Gently release the clamp and slide the curling iron out, allowing the curl to set.
- Repeat: Continue with remaining sections. For a softer look, gently brush through curls once cooled.

Image 5.2: The cool tip provides a comfortable and secure grip during styling.

Image 5.3: The ProGlide clip ensures smooth hair movement and effortless control.
5.3 Official Product Video
Video 5.4: An overview of the T3 SinglePass Curl X Extra-Long Barrel Curling Iron, demonstrating its features and use.
6. Maintenance and Care
- Cleaning: Ensure the appliance is unplugged and completely cool before cleaning. Wipe the barrel and handle with a soft, damp cloth. Do not use abrasive cleaners or immerse in water.
- Storage: Store the appliance in a cool, dry place. Do not wrap the cord around the appliance, as this can cause premature wear and breakage.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Appliance not heating up. | Not plugged in correctly; power button not activated; power outage. | Ensure plug is fully inserted; press and hold power button; check power supply. |
| Inconsistent heat or flashing lights. | Appliance is still heating up to selected temperature; internal malfunction. | Wait for lights to become solid; if problem persists, contact customer support. |
| Hair snagging or pulling. | Hair not properly detangled; improper use of clip. | Ensure hair is fully detangled; use the ProGlide clip as intended for smooth release. |
8. Specifications
- Model Number: 300399-UL-10
- UPC: 883349005451
- Product Dimensions: 13.6 x 2.5 x 2.5 inches
- Item Weight: 14.88 ounces
- Barrel Material: Ceramic
- Color: White/Rose Gold
- Heat Settings: 9 (Digital T3 SinglePass Technology)
- Manufacturer: T3 Micro

Image 8.1: Digital T3 SinglePass Technology ensures precise and consistent heat for lasting results.
9. Warranty and Support
For warranty information or customer support, please refer to the official T3 Micro website or contact their customer service directly. Keep your purchase receipt for warranty claims.

