Specification: Kv (rpm/v): 1400 Power(W): 100 Wire winds: 25 Resistance(mΩ): 352 Idle current(A): 0.7 ESC(A): 15 Cells Ni-Cd / Ni-MH: 6-12 Cells Li-PO: 2-4 Prop: 7.5*3.5 / 8*4 / 9*5 Weight: 35g