... range:1-20,1-30,1-50levels Amplitude:1-1 Remote controlInput voltage: 220V/50HZ or 100V/60HZMaximum power: 200WSpeed range ... : 210pcs Qty/40'FCL: 460pcs it can be used by remote,so when you stand on it or sit down on ... it,you can use the remote for control the speed or others,it is very convenient ...