Functions: 1) Step-less acceleration and deceleration and ABS electronic brake; three speed options 2) Automatically correct code and decode, controller is suitable to all skateboard with same model and does not interfere each other 3) Automatically emergency brake offers safe anti-collision protects 4) Automatically self-testing system troubles 5) Making alarm when wrong operation and insufficient battery happen, automatically shut-off Battery capacity: 2 x 5Ah 24V Motor power: 150W Charging time: 3 - 6hrs Speed: Range: Starter: wireless digital remote control Battery input voltage: 90 - 250V Max Load capacity: 65kg N.W.: 9kg G.W.: 11kg Outer packing: Carton dimensions: 89 x 30 x 20cm