1. Press continuously for 5 seconds to shut down, turn on the soldering iron, and quickly heat up and cool down. 2. High quality stainless steel, lightweight and easy to carry, easy to operate, convenient and practical. 3. Digital display of battery level. Welding work is convenient. 4. Fast heating, high/medium/low selection mode. 5. It is very suitable for hand weaving, thread breaking/wiring/finishing, wax melting and carving, jewelry bead, wooden board hot stamping, etc. Auto sleep, auto sleep for 10 minutes. Product Name: USB Hot Wire Pen (with Cover) Suggested charging voltage: 5V Voltage: 2.7V-3.4V-4.2V (adjustable) Battery capacity: 650mAH Charging time: 60 minutes Duration of use: 30 minutes Working temperature: 330℃-450 ℃ Automatic sleep time: 10 minutes Applicable scenarios: Hand woven special, wire breakage/connection/finishing, wax melting and carving, jewelry bead, wooden board hot stamping, etc Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:E:Black Material:Stainless steel Package Contents: 1 x USB hot wire pen 1 x Hot wire head 1 x Cover 1 x Charging cable