Feature - This chair is designed in the stool type in order to fit for the small space while the function of up/down movement remains. - There are 2 options. · RC-400 could be operated once connected with Unit (RT Series) · RC-400 could be purchased alone. In this case, RC-400 would be supplied with power supply. Specification Chair External Dimension 460(W)*490(D)*870(H) Chair Seat Height Min.420 ~ Max.670 Chair Up/Down Stroke & Speed 250mm, 15mm/sec Rated Voltage AC 110 or 230V / 50 or 60 Hz Power Consumption 100VA Allowable Loading Weight of Chair 150kg Product Weight 18kg ※ Purchase only with unit table