Abstract: A directional signal device includes a battery-operated signal transmitter installed in a vehicle, the signal transmitter having a control circuit board adapted to transmit a directional signal wirelessly and formed of a power circuit, a direction selection circuit an encoder circuit, and a transmitting circuit, and a battery-operated signal receiver carried on the user, the signal receiver having a control circuit board formed of a power circuit, a receiving circuit, a decoder circuit, a comparator circuit, a light driving circuit, and a directional light emitting unit. The signal transmitter is operated by the user to wirelessly transmit a directional signal to the signal receiver, causing the directional light emitting unit of the signal receiver to flash, indicating a direction to follow.

Abstract: A safety hat having an alert function comprising a hat body, a battery, and a plurality of soft or hard light emitting strips, and a control switch. The hat body is like a shade. The soft light emitting strips are adhered on the surface and two lateral sides of the hat body. The battery is formed on the soft light emitting strips. One end of the control switch is connected to an electrode of the battery, and another end thereof is connected to the power supply end of the light emitting strip. By the action of the control switch, the soft light emitting strip lights up or extinguished. Thereby, a safety hat having an alert function is formed, which can be assembled by the user.

Abstract: An audio and video effect flight toy comprises a rod and a supporter. The supporter is connected to the rod. A groove is formed on the supporter. A slender rope winds around the supporter; and another end of the slender rope is tied with a drag handle. A disk has a round disk at a center, and at least one blade is formed at an outer ring of the round disk; while another end of each blade is connected to an outer ring circularly. A bottom of the round disk is protruded with a post. A circuit unit is installed on the round disk. The circuit unit is formed by a light emitting pieces and an audio element. The top of the round disk, connections of the round disk with each blade, and connections of each blade with the outer ring are installed with power joints for being installed with light emitting pieces.