Description Maximum pressure: 100 psi Flow rate: 35L/minute 30mm cylinder and high speed injection function Metal pressure gauge and 1 m air hose 3m cord with cigarette lighter plug 2 nozzle adapters and 1 sports needleS certified Instruction Manual: Operating the vehicle engine, make it outputs the max current. Let the cigarette lighter plug put into the socket. Screwing in the cooper nozzle to the tire air inlet, open the switch to start inflating. Turn off the switch, screw out the nozzle when the tire pressure is enough. 5. If it is used on other objects, you need to connect the accessories to the brass mouthpiece. Warning: Don't leave away when inflating, pls turn off the switch after continuous working for 30 minutes, let the compressor cool off. Don't touch the metal surface when it works in order not to be burned by it. Note: 1. The product can only be used to connect DC12V voltage battery. 2. All the accessories have been added the lubricating oil, don't need add again. 3. Operating the engine first to avoid the air compressor work in low voltage. 4. After using it, please turn off the switch and power, cool it off before put it away.