Mini Size but Max 140PSI Powerful 2 ways of power supply, DC 12V Air Compressor or Wireless Built-in 6000mAh Battery Power Supply Our Portable air compressor can be used as a power bank Auto-Stop & Built-in Memory Function:4 optional units of PSI, BAR, KPA, Kg/cm2 Tire Inflator with Digital Pressure Gauge & Bright, SOS Indicat