1. Battery not included: This wireless sealing gun tool is compatible with Makita batteries BL1830, BL1840, BL1850, and BL1860 (batteries not included, only the tool is provided). 2. Four adjustable speeds: Our portable grout gun features four speed settings, allowing you to easily control the flow and usage of adhesive. You can adjust the flow rate from 0 to 220 mm/min for flexible and precise application of various adhesives and sealants. 3. Easy sealing: The automatic grout gun is wireless and eliminates the need for manual pressing, significantly reducing hand strain. It is suitable for projects involving both large and small components, such as window installation, car windshields, doors, and bathroom fixtures. 4. Comfortable and effortless: Compared to traditional manual grout guns, this wireless version is more convenient and requires less effort, making it a preferred tool for various applications. 5. Drip mechanism: The sealing gun delivers 300 kg of pressure to dispense adhesives and sealants and is equipped with an antidrip function that prevents leakage after releasing the trigger. This ensures clean, precise application and minimizes waste.