CORDLESS SOLDERING IRON RECHARGEABLE: 5V 15W battery powered soldering iron with built-in 1100mAh battery. When charging the wireless soldering iron, connect the USB interface to a computer, power bank or mobile phone charger. About 2 hours on a single charge, 40 minutes of continuous work. REGULATION VOLTAGE: The knob on the bottom of the soldering iron can adjust the voltage in both directions, the adjustable range is 3.3V-4.8V, the heat is up to 716/380. Press and hold the switch button for 8 seconds to quickly heat up, and repeat this operation to continue heating. 510 THREADED INTERFACE: The soldering iron pen is made of stainless steel, and the 510 threaded interface can be connected to a copper alloy soldering iron tip and a USB soldering iron charging cable. SAFETY PROTECTION: Press the switch button for 5 consecutive within 2s to turn it on, and the indicator light will be on. Automatically enter sleep mode without any operation within 10 seconds. PORTABLE SOLDERING IRON: The wireless charging welding tool is light and easy to carry, suitable for DIY design, electronic product welding, jewelry repair, electrical accessories, circuit board repair, etc. color:Blue Material:Metal Package Contents: 1 x Rechargeable Soldering Iron with Protective Cover 1 x Soldering Iron Tip 1 x bracket 1 x usb charging cable 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.