1. Press and hold for 5 seconds to turn the soldering iron on or off, enabling quick heating and cooling. 2. Made of high-quality stainless steel, portable, easy to operate, and convenient for everyday use. 3. Fast heating with selectable high, medium, and low temperature settings. 4. Ideal for crafts such as hand weaving, cutting or connecting threads, wax melting and carving, jewelry making, bead work, wood burning, and hot stamping on wooden boards. 5. Features auto sleep mode after 10 minutes of inactivity for safety and energy saving. Product Name: USB Hot Wire Pen (with Cover) Recommended charging voltage: 5V Operating voltage: 2.7V–3.4V–4.2V (adjustable) Battery capacity: 650mAh Charging time: approximately 60 minutes Usage time: up to 30 minutes Working temperature range: 330°F–450°F Auto sleep: 10 minutes Application scenarios: Handicrafts, thread cutting/tying/finishing, wax melting, carving, jewelry, bead work, wood burning, hot stamping, etc. Note: Product appearance, color, and labeling may vary slightly between batches, but this does not affect performance. Color: Black Material: Stainless steel Package Contents: 1 x USB Hot Wire Pen Kit Note: Other items not included. Note: Slight color differences may occur due to lighting and screen display variations. Measurement tolerance: ±1–3 cm.