Portable spot welding machine, with quick release welding pen;Compact and portable size design can easy to take belong;Integrated welding pen use gold-plate terminal, with good conductivity and low contact ;Thickened pure copper strip and imported MOS tube can save energy and can provides longger service time;Built-in high rate battery, with charge and discharge performance, more stable;Name: Spot Welding MachineBattery Capacity: 5500mAhWelding Output: 42V Max 639AWelding Thickness: 01-015mmUSB Output:5V Max 24ACharging Port: Type-Csize: 103 x 83 x 29mmMaterial: Metalcolour: blackPackage Contents:1 x DH20 Pro+ Welding Machine1 x Welding Pen1 x 012mm x 8mm x 2m Nickel Plated Steel Belt1 x cableOnly the above package content, other products are not included.Note: Light 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.