1. Plug the power cord into the wall socket, insert the glue into the gun, turn on the power and preheat the glue gun for 2-5 minutes before use. 2. Pull the handle after heating and start working! How to use the cordless hot glue gun (the glue gun must be preheated): After the heating is completed, you can work anywhere. About dripping and preserving glue: With this hot glue gun, the glue melts faster and more evenly. After the glue gun is pulled out and the power is turned off, the melted glue in the nozzle will continue to drip. This is a normal physical phenomenon, because it takes a while for the heat and pressure to disappear. The way to keep the stick without dripping is to turn off the power a few minutes before stopping use. note: Do not use the glue gun in wet conditions. Not suitable for children under 12 years old without adult supervision. Store the hot glue gun only after the nozzle has cooled to prevent damage to other items. Do not touch the nozzle and glue during use. If you touch the hot nozzle or glue, wash it off