... AC110V 230V240V 50/60Hz electric balloon air pump diaphragm mattress bed pump JD-M800 useOur products are widely used ... in medical equipment,electic tools,prevent cotton-padded mattress, massage apparatus and craft gifts,etc.valtage( according ... --24V AC6--240V(50Hz--60Hz)flow channel characterristicsingle nozzle/double nozzle,the position can change according to customers demandcurrent ...