21V Cordless Caulking Machine with Aluminum Tube Hand-held Cordless Electric Caulking Machine Kit Equipped with 2.0 Ah Battery and Charger LED Light 7 Adjustable Speeds For Filling Sealing Features: 7 Speeds Adjustable: 7 varying speeds allow you to control flow / move speed that Powerful enough to handle most adhesives and caulks. Precise adjustable forcing speed from 132 to 210mm/min. LED Light: The built in light at the end of the barrel is a nice feature when working is dark spaces like attics, crawl spaces, garages or other. Bright enough to let you notice the caulk flow and seam. Large Capacity Battery: A powerful power support system will enable your caulk machine to work to its full strength. 2.0Ah batteries configured with fast charger, battery cell, collection of circuit and temperature protection, long life. Prevention of Glue Dripping: When this caulking machine is not used, the insertion rod will automatically retract to prevent excess glue dripping, which greatly improves the working efficiency. Complete Accessories: Equipped with the latest efficient gadget kit to help you quickly de-glue and scrape for natural and smooth gluing. We offer a toolbox for you to easily carry the tools anywhere. Widely Used: It is applicable to the filling of small gaps such as door and window gaps, decoration works, ceiling, and house leakage. Tips:Better to start with the lowest speed to test flow practice. Specifications: Plug: US / EU / UK (Optional) Battery Quantity: 1Pcs / 2Pcs (Optional) Voltage: 21V Speed: Min: 2.2mm/s ; Max: 3.5mm/s Thrust: 800kg (±50kg) Maximum Length of Glass Glue That Can be Accommodated: 360mm Maximum Diameter of Glass Glue That Can be Accommodated: 49 mm Battery Capacity: 2.0Ah Material: Aluminum+plastic Item Size: 50.5 * 26.5 cm / 19.88 * 10.43 inch Item Weight: 2258g / 4.98lb Package Size: 54.5 * 29.5 * 11 cm / 21.46 * 11.61 * 4.33 inch Package Weight: 1 Battery: 4250g / 9.37lb ; 2 Battery: 4559g / 10.05lb Package List: 1 * Caulking Machine 1 * Charger 1 * 2.0Ah Batteries / 2 * 2.0Ah Batteries 1 * Nozzle Tube 1 * Hexagonal Wrench 1 * Long Screw 1 * Short Screw 2 * Auxiliary Pusher 1 * Hook Knife 1 * Tungsten Steel Yin and Yang Angle 4 * Steel Ball 1 * Spade Knife 1 * User Manual (English)