A toy gun that includes a dart ejecting device and a magazine for loading darts and shells is disclosed herein. The RF powder particle includes a coil 24 as a magnetic filed coupling element and a condenser 25 connected to the both ends of the coil on an insulating surface of a substrate 22 and is configured so as to form a tank circuit 31 by the inductance element and the capacitance element. A synchronization circuit may determine a first selection value that selects a first delayed clock whose delay compensates for the propagation delays created in a selection circuit. At least one bypass diode portion is epitaxially grown on the first solar cell portion. The muffler has a muffler crankshaft hole through which the crankshaft passes, and a muffler discharge region configured to discharge the compressed gas discharged from the discharge port toward an outer surface of the crankshaft. Starting and ending times are products of the process, often used for traffic flow counts.