1.1 SEME -210 The total weight 2.15 kgs.The max.tying diameter :21mm.Motor voltage is 9.6v with nickel and metal hydride electric batteries.It will take around 0.8 second to tie a knot.The length of wire for tying is around 380mm (2 wraps)/510mm(3 wraps). The charge battery can tie more than 700 knots once and the charge time is around 50 minutes.The diameter of wire is 0.8mm and the length is 100m. 1.2 SEME-400 The total weight 2.2 kgs.The max.tying diameter:40mm.Motor voltage is 9.6V with nickel and metal hydride electric batteries.It will take around 0.9 second to tie a knot.The length of wire for tying is around 600mm (2 wraps)/780mm(3 wraps). The charge battery can tie more than 600 knots once and the charge time is around 50 minutes.The diameter of wire is 0.8mm and the length is 100m.