Heats Up Quickly: With quick heat-up and quick thermal recovery. Adjustable Temperature: 300-510 temperature adjustable, you can set the desired value to meet your soldering needs. New Design: Latest heat dissipation handle design, comfortable hand feeling for long term use, patent tail handle line pressing design is more secure to solder. Digital Display: digital display can shows the real time temperature clearly. Easy Installation Tips Design: Easy to install and replace the tips, time-saving and efficient. and Portable Size: You can starts soldering anywhere at any time without feeling fatigue for long period of operation. Longer Lifespan with Fine Quality: Heat-insulated and antislip bakelite handle provides comfortable and secure operation. How to use: and hold the "+" button for 2 seconds to turn on/off the "+" button once after power on to increase the temperature by 10. the "-" button once to lower the temperature by 10. 4.0AH battery use time about 6 hours. 3.0AH battery use time about 4.5 hours. 2.0AH battery use time about 3 hours 1.5AH battery use time about 1.5 hours. Standby time 10 minutes automatic shutdown. Note: Please do not touching the soldering tips metal part when the power is turned on. Please turn off the power when resting between usage or finished soldering. Name: Electric Soldering Iron Power: 60W Temperature Range: 300-510 Temperature Stability: 10 Heating Type: Internal Heating Soldering Nozzle: 936M Series Battery:the blue one for 14.4V-18V Li-ion battery. (battery not included) Color: As Shown Material: plastic Package Contents: 1 * Electric Soldering Iron (battery not included) 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.