Features:Powerful, multi-purpose:Compatible with a variety of nozzles, suitable compatible a variety of items to inflate, like pro-bike tires, home use car tires, motorcycle tires, electric bicycle tires, balls, swimming rings, inflatable toys and other inflatables.Bright LED light:helps you see clearly in emergency situations at nightSpecification:Product Name: Wireless Air PumpProduct size: 49*87*135mmBattery capacity: 4000mAh lithium batteryPower: 50WWorking voltage: DC 7.4VWorking current: 7APiston diameter: 19mmMaximum Air Pressure: 150psiAccuracy: 1.5psiAir volume: 35L/minCylinder size: 19 cylindersLED lighting lumen value: 20LMNoise: less than 85dbCharging time: about 2-3 hoursUse time: 40minUSB line voltage: 5VLength of air hose: 200mm10mmAdditional functions: pressure measurement, power bank, lighting, warning