Technical Paramenters voltage: AC230 50Hz Power consumption: 280W(Max) Max suffer weight: 250kg Backrest: 90-135 degree cushion spin:180 degree up-down stroke: 495mm(min)~615mm(max) Headrest: 100mm flexible(it can fold and remove) chair color choice : ivory ,dark green & light blue Body Size : 85*62*123cm packing size :86*76*126cm Control way : by foot switch G.W:110kg/ N.W:67kg