Mini Portable Multifunction Digital Electric Tyre Pump 12V Air Compressor 250PSIFeatures:Size: Approx. 22x15.5x6cm\/ 8.66x6.10x2.36"Valve Cable Length: Approx. 60cm\/ 23.62"Cigarette Lighter Cable Length: Approx. 255cm\/ 100.39"12V 10Amp Digital compressor for use with a carMaximum pressure 250PSIComes with three nozzle attachments for sports ball etc.Select an adapter if necessary for your articleCheck the articles user manual for the correct pressure to inflate toPlace the hose end valve onto the valve of your item ensuring a good connection is made. Close the thumb latchPlug the power cord into the cigarette lighter or power source of your car. Turn on your carPress the unit button (the left hand button-this may be marked M) to choose the measuring unit required: press once for PSI、 twice for BAR、 three times for KPA and four times for Kg.cmThe LCD display will shoe the current pressure reading of your articlePress the +\/- buttons to set the required pressurePress the on switch of the compressorThe compressor will then activateWhen the required pressure is reached、 the compressor will continue for a few second and then stop. Press the off switch and unplug the unitPackage Included:1 x Air Compressor3 x Nozzle Attachments1 x English User's Instruction