Feature: 1. Smart Glue Apply: Ensuring fast exhaust without overflow, the caulk gun can evenly apply the glass glue, and the speed is also 4 level adjustable. 2. Auto Retract Use: The motor with an auto retraction system can prevent sealant leakage during shutdown. When the triggering is released, the motor will immediately reverse and release the pressure on the pipe. 3. Has 2pcs Battery: Comes with 2pcs 2000mAh lithium battery, the cordless caulking gun will better support your work with continuous stable operation. 4. Wide Application: Can be widely applied to photovoltaics, solar panels, bathtubs, aquariums, building decorations, glass door and window and so on. 5. Simpler Carrying: Designed to have a compact size and a light weight as well, the pneumatic caulking gun is very convenient to carry with you. Specification: Item Type: Cordless Caulking Gun Caulking Speed: 95mm/min Working Current: 1A Working Pressure: 250kgs Working Time: 240 Minutes LED Current: 200mA LED Luminous Flux: 400-450Lm LED Color Temperature: 6000-6500K LED Color Display: 70-75Ra Battery Capacity: 2 x lithium battery 2000mAh, with supporting battery. . Package List: 1 x Cordless Caulking Gun2 x Lithium Battery1 x User Manual1 x Charger