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, lightweight, easy to carry, operate, and use conveniently. 3. Fast heating with high, medium, and low temperature settings. 4. Ideal for crafts such as string weaving, cutting or connecting wires, finishing, wax melting and carving, jewelry making, bead work, and wood burning. 5. Features auto sleep mode after 10 minutes of inactivity. 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: 60 minutes Usage time: 30 minutes Working temperature: 330°C–450°C Auto sleep: 10 minutes Applicable uses: String crafts, wire cutting/connection/finishing, wax melting and carving, jewelry, bead work, wood burning, etc. Note: Due to different production batches, variations in appearance, color, and printed text may occur; these do not affect product functionality. Color: White Material: Stainless steel Package Contents: 1 x USB Hot Wire Pen Kit Note: Other items not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowed: ±1–3 cm.