1. Important Safety Information
Please read all instructions carefully before using the Ymiko S7 Cordless Hair Straightener Brush. Keep this manual for future reference.
- Do not use this appliance near water, in a bathtub, shower, or over a basin filled with water.
- Always unplug or turn off the appliance immediately after use.
- Keep away from 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.
- Do not operate any appliance with a damaged charging cable or if the appliance malfunctions or has been dropped or damaged in any manner.
- Keep the charging cable away from heated surfaces.
- Never use while sleeping.
- Do not 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.
- 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 turned on.
- Use this appliance only for its intended use as described in this manual.
Warning: Burn Hazard. Keep appliance away from children. Do not touch heated surfaces during operation.
2. Product Overview
The Ymiko S7 Cordless Hair Straightener Brush is designed for convenient and effective hair styling. Its ceramic-coated double-layer design ensures even heat distribution and helps prevent scalding, while negative ion technology helps reduce frizz and enhance shine.
Package Contents:
- 1 x Ymiko S7 Cordless Hair Straightener Brush
- 1 x USB Data Cable
- 1 x Styling Comb
- 2 x Duckbill Clips

Image: The Ymiko S7 Cordless Hair Straightener Brush, a USB charging cable, a pink styling comb, and two pink duckbill hair clips.
3. Setup and Charging
Initial Charge:
- Before first use, fully charge the hair straightener brush.
- Connect the provided USB data cable to the charging port on the brush.
- Connect the other end of the USB cable to a compatible USB power adapter (not included) or a computer USB port.
- The indicator light will show charging status (refer to the device's specific indicator behavior, usually blinking while charging and solid when fully charged).
- Charging time may vary. Allow sufficient time for a full charge before first use.
Note: For optimal battery life, avoid completely draining the battery before recharging.
4. Operating Instructions
Preparing Your Hair:
- Ensure your hair is clean and detangled.
- The brush can be used on both dry and wet hair. For best results and to protect hair, ensure hair is towel-dried if wet.
- Apply a heat protectant spray if desired.
- Section your hair using the provided duckbill clips.
Powering On and Temperature Selection:
- Press and hold the power button (usually located on the handle) for a few seconds to turn on the device.
- The device will begin heating. The default temperature setting may activate automatically.
- Press the power button repeatedly to cycle through the available temperature settings:
- Low: 320°F (160°C) - Suitable for soft, fine, or thin hair.
- Medium: 356°F (180°C) - Suitable for medium hair types.
- High: 392°F (200°C) - Suitable for thick, strong, or coarse hair.
- Allow the brush to reach the selected temperature before use. An indicator light or display will confirm when the desired temperature is reached.

Image: Top view of the Ymiko S7 Cordless Hair Straightener Brush, highlighting the brush head and control panel.
Styling Your Hair:
- Take a small section of hair and place it into the brush.
- Slowly glide the brush through the section of hair from root to tip.
- Repeat this process for all sections of hair until desired straightness or curl is achieved.
- For curls, gently twist the brush as you glide it through the hair.
- Avoid holding the brush in one place for too long to prevent heat damage.

Image: Angled view of the Ymiko S7 Cordless Hair Straightener Brush, showcasing its ergonomic design.
Powering Off:
- After styling, press and hold the power button until the device turns off.
- Allow the brush to cool completely before storing.
5. Maintenance and Care
- Cleaning: Ensure the brush is turned off and completely cool before cleaning. Use a soft, damp cloth to wipe the exterior. Do not use abrasive cleaners or immerse the device in water.
- Bristle Care: Gently remove any hair tangled in the bristles using the provided styling comb or a soft brush.
- Storage: Store the brush in a cool, dry place, away from direct sunlight and moisture. Ensure the USB cable is not tightly wrapped around the device, which could damage the cable.
- Battery Care: To prolong battery life, avoid storing the device with a completely depleted battery. Recharge periodically if not used for extended periods.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Battery is depleted. | Charge the device fully using the USB cable. |
| Device not heating up. | Not powered on correctly; low battery; temperature not selected. | Ensure the device is turned on and fully charged. Select a temperature setting. |
| Hair not straightening effectively. | Incorrect temperature setting; hair sections too large; brushing too quickly. | Increase temperature if hair type allows. Use smaller hair sections. Glide the brush through hair more slowly. |
| Device shuts off unexpectedly. | Low battery; automatic safety shut-off. | Recharge the device. If it continues to shut off, contact customer support. |
7. Specifications
- Model: Ymikoomig6rsw9t-12
- Brand: Ymiko
- Material: Ceramic (heating plates/coating)
- Temperature Settings: 320°F (160°C), 356°F (180°C), 392°F (200°C)
- Power Source: Cordless, Rechargeable via USB
- Dimensions: Approximately 9.06 x 3.94 x 1.97 inches
- Weight: Approximately 13.69 ounces
8. Warranty and Support
Ymiko products are manufactured to high-quality standards. For warranty information or technical support, please refer to the purchase platform or contact Ymiko customer service directly.
Please retain your proof of purchase for any warranty claims.
For further assistance, you may visit the Ymiko Store on Amazon.





