SUNMAY Cordless Hair Straightener Portable Mini Flat Iron — 5000mAh USB-C, 20s Fast Heat, 2‑in‑1 Curler

The SUNMAY Cordless Hair Straightener is a compact, rechargeable 2-in-1 flat iron and curler that heats in 20 seconds and delivers cordless styling anywhere with a 5000mAh USB-C battery.

Designed for travel and quick touch-ups, this portable mini flat iron weighs just 0.59 lb and measures about 8.5 inches — small enough for a purse yet powerful enough for salon-like finishes. It combines a rapid-heating titanium alloy floating plate, intelligent temperature control, dual-voltage support and a heat-resistant travel pouch so you can style hair at home, in the car, or on the road without being tethered to an outlet.

How fast does the SUNMAY mini straightener heat up?

The SUNMAY reaches styling temperatures in seconds thanks to its efficient heating system and titanium plate. You can expect 165°C in about 20 seconds and roughly 205°C within 30 seconds, cutting prep time for busy mornings and quick touch-ups.

• 20-second rapid warm-up to 165°C for quick smoothing
• 205°C in about 30 seconds for more stubborn waves
• Titanium heating plate for even, consistent temperature
• Intelligent temperature control to help maintain set heat

What makes this straightener travel-friendly and cordless?

This model is built with a 5000mAh rechargeable battery and USB-C charging so you can style without a cord for roughly 30 minutes per full charge. Its dual-voltage compatibility and compact 8.5-inch size make it suitable for international travel, and the included heat-resistant pouch protects your bag and device.

• 5000mAh USB-C rechargeable battery for cordless use
• Approximately 30 minutes of wireless styling per charge
• Dual-voltage support for worldwide outlets
• Heat-resistant travel pouch included for safe transport

How does the titanium floating plate affect styling and hair glide?

The upgraded titanium alloy floating plate has a smooth, non-coated surface to reduce friction and improve heat transfer. Compared with coated plates, it offers a smoother glide and more uniform heating, helping reduce hair pulling and delivering consistent results across sections.

• Uncoated titanium alloy plate reduces friction up to 50%
• Floating design adapts to hair thickness for even contact
• Higher surface smoothness and uniform heating than coated plates
• Professional-grade temperatures up to about 200–230°C

Can one device both straighten and curl effectively?

Yes—this SUNMAY unit is designed as a 2-in-1 tool: clamp and glide for a straight finish or use the plate edges and twist technique to form curls and waves. For best results, work with smaller sections, go at a measured speed, and ensure the battery is fully charged before styling.

• 2-in-1 flat iron and curler functionality
• Best results on small sections with controlled speed
• Suitable for most hair types when used correctly
• Full charge recommended to maintain styling performance

Who is this for? The SUNMAY Cordless Hair Straightener suits travelers, commuters, students, busy professionals and anyone who wants a compact styling tool for quick at-home or on-the-go touch-ups. It’s ideal if you need a lightweight, fast-heating device with rechargeable cordless convenience and international voltage support—but avoid carrying the aluminum battery into Japanese airports, as restrictions apply.