For the e-shop description to be correct and useful for customers, I need you to add: what type of gun it is (toy / glue / spray / massage, etc.), power supply (type and number of batteries, or charging method), brand/manufacturer, dimensions, material, color, weight, power/capacity, and package contents.
As soon as you send the source details, I will add a customer-friendly description including the main benefits (e.g., modes, safety features, accessories, recommended use) and prepare a complete technical specifications section in a structured format.