Model:s-620 Charge voltage:ac 110-240v(50hz/60hz) Charge time:12-15h Working voltage:dc7.2v Working time:50min No load speed:3500rpm G.W/n.W:1.9kg/1.7kg Speicifications:210*300*80mm Size of box:320*108*250mm Qty per carton:7pcs Loadign qty:3213pcs/20' 6804pcs/40' 7560pcs/40'h Size of box:320*108*250mm G.W/n.W:1.9kg/1.7kg