I see. I didn't have to open the box as it fell apart. It wasn't glued properly. The square SMD nozzle shown in the photos in the listing is NOT (and should not be) but the person who listed this product chose to post the wrong photo. The heating element appears to vibrate against the housing when in the holder. . This can be avoided by rotating the gun in the mount. Can mark the "top" spot. But after I found him, he became very quiet. ALSO BE VERY CAREFUL, the red button on the front of the device must be disabled when you turn it on. It can be pushed in easily and without fault during transport. This makes the weapon "alive" when the main pistol is turned on. In vacuum gripping mode (heater off) there is no airflow control. He switched to maximum flow. For small integrated circuits, this means that the puller will not drop them because the air pressure is too high when the "drop hole" is open. However, it absolutely serves its purpose.