1, Compressor motor with modifiation(2 Relay inside motor) 2, The motor is made in TaiWan 3, Warranty time:2 years Silent,Oilless Dental Air Compressor Motor made In Taiwan, with technology which put 2 layers inside, can hold 170V~240V electric changePower: 3/4 HPAIR FLOW: 90L/minVOLTAGE: 220V/ 50HZPRESSURE: 7 BARSPEED: 1420 RPMTANK: 25LWith 4 wheelsWarrenty: 2years