... conservation switch(j) 12 V starting accumulator and Battery line(k) Marine type Shock Pad(l) High-efficient muffler (m)Non-return ... -return valve(imported from ITALY),Marine type Shock Pad,exhaust silencer, flexible pipe, battery and connecting wires, Standard tools kit, operation ... and paralleling system, soundproof canopy and moving trailer. Digital inverter battery powered generator (3kw to 30kw).