A lithium secondary battery includes a cathode, an anode, a separator interposed between the cathode and the anode, and a non-aqueous electrolytic solution obtained by dissolving lithium salt to a non-aqueous solvent. Congestion and blocking at an ingress port is avoided because packet replication is performed at random nodes dispersed throughout the switch fabric. The confectionery compositions comprise:. A CPU measures a DC level of an output signal from the AD converter, and transmits control signals OCa\u2013OCf to a variable resistor in the RF amplifier unit so that a difference between the DC level and a median in a dynamic range of the AD converter attains \u201c0\u201d.