1.Low voltage power supply, safe to use. 2.Built-in 3200Amh battery, support wireless welding, also support charging while welding. 3.With C210 heating element,heating up in 10 second and melting tin 10 seconds. 4.PID precise temperature control,Temperature stabilization. 5.HD screen, the working state of the soldering iron is clear at a glance. The handle is , size same as a marker pen , it's easy to carry. It can be converted to C / F Users can set the automatic from 2 to 99 seconds. With temperature correction function, temperature compensation can be set to 80. Suitable for personal and home repairs. Product Parameter Model Name: BK210 Tip: C210 intergrated iron tip Temp range : 180-450 Auto-: 2s-99s Temp compensation range: 80 Power:12W Weight:75g Size: Digonal length 21mm, iron length 146mm Charging voltage :DC5V Charging connector : Type-c Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Colour:blue Material:plastic Package Contents: 1 set x Soldering Iron Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.