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 lightweight, size same as a marker pen , it's easy to carry.It can be converted to ° C / ° FUsers can set the automatic sleep time from 2 to 99 seconds.With temperature correction function, temperature compensation can be set to ±80℃.Suitable for personal and home repairs.Product ParameterModel Name: BK210Tip: C210 intergrated iron tipTemp range : 180℃-450℃Auto-sleep time: 2s-99sTemp compensation range: ±80℃Power:12WWeight:75gSize: Digonal length 21mm, iron length 146mmCharging voltage :DC5VCharging connector : Type-cTips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect UseColour:blueMaterial:plasticPackage Contents:1 set x Soldering IronOnly 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.