A personal security apparatus includes an electronic device that includes a housing having a front wall, a rear wall, and a side wall extending between peripheral edges of the front wall and the rear wall, respectively, the housing defining an interior area. A whistle assembly operably situated on the housing that includes a slit defined by the front wall of the housing, the slit being displaced from and proximate to the side wall of the housing. The personal security apparatus includes a battery positioned in the interior area of the housing and an audible alarm electrically connected to the battery. An input member, such as a panic button, is positioned on one of the front wall or the rear wall of the housing and electrically connected to the audible alarm for energizing the audio alarm when actuated.

A personal security apparatus includes an electronic device that includes a housing having a front wall, a rear wall, and a side wall extending between peripheral edges of the front wall and the rear wall, respectively, the housing defining an interior area. A whistle assembly operably situated on the housing that includes a slit defined by the front wall of the housing, the slit being displaced from and proximate to the side wall of the housing. The personal security apparatus includes a battery positioned in the interior area of the housing and an audible alarm electrically connected to the battery. An input member, such as a panic button, is positioned on one of the front wall or the rear wall of the housing and electrically connected to the audible alarm for energizing the audio alarm when actuated.

Example clippable multi-tone whistles, as well as systems and methods for manufacturing the same are described. An example clippable multi-tone whistle may comprise: a clip attached to a whistle body. The whistle body comprises a flat surface under the clip; a first opening configured to allow air flow to come into the whistle body; and on the flat surface a second opening configured to allow air flow to come out of the whistle body. The second opening is at least partially blocked by the clip, which controls direction of one or more air flows coming out of the second opening. The whistle part is configured to generate a plurality of different sound tones in accordance with user finger movements around the clip and the second opening. The whistle may further comprise a glass breaker, a length scale, and a bolt action switch, which may function as a fire starter.

Example clippable multi-tone whistles, as well as systems and methods for manufacturing the same are described. An example clippable multi-tone whistle may comprise: a clip attached to a whistle body. The whistle body comprises a flat surface under the clip; a first opening configured to allow air flow to come into the whistle body; and on the flat surface a second opening configured to allow air flow to come out of the whistle body. The second opening is at least partially blocked by the clip, which controls direction of one or more air flows coming out of the second opening. The whistle part is configured to generate a plurality of different sound tones in accordance with user finger movements around the clip and the second opening. The whistle may further comprise a glass breaker, a length scale, and a bolt action switch, which may function as a fire starter.

Disclosed is a reusable combination corrugated drinking straw and whistle. The drinking straw has an elongated tubular body with a fluid passage running therethrough. The tubular body is manufactured from metal (e.g., stainless steel) and has a plurality of corrugations extending radially outward therefrom. The tubular body is flexible and adapted to be bent so as to enable a user of the corrugated drinking straw to sip a beverage from a cup or the like. The corrugated drinking straw can also be used to produce an audible whistling sound when it is removed from the cup. The whistling sound is achieved when the user blows his breath against a blowing end of the drinking straw that is cut through one of the corrugations that extends radially outward from the tubular body. In this case, the corrugated drinking straw is wider at its blowing end than at the tubular body thereof.

A two-tone whistle that alters an audible patch that reduces confusion when multiple athletic events are played with whistles being blown during the multiple athletic events. The two-tone whistle includes a mouthpiece, a resonate chamber, a ball, a lever and a lanyard aperture. The slotted edge is integral to the lever and is adapted to move up or down as the lever moves up or down producing a first audible pitch and a second audible pitch, wherein the first audible pitch is lower than the second audible pitch.

A two-tone whistle that alters an audible patch that reduces confusion when multiple athletic events are played with whistles being blown during the multiple athletic events. The two-tone whistle includes a mouthpiece, a resonate chamber, a ball, a lever and a lanyard aperture. The slotted edge is integral to the lever and is adapted to move up or down as the lever moves up or down producing a first audible pitch and a second audible pitch, wherein the first audible pitch is lower than the second audible pitch.

A method of remote controlling a luminous signalling system in the course of team game played by orally and aurally challenged players under the supervision of a referee or umpire equipped with whistle and a transmitting-receiving device. The referee uses, in cases provided by regulations applicable to the practiced sports discipline, an electronic whistle equipped with a rotor coupled with a reed relay, a sensor, and a transmitting device by blowing air into mouthpiece of the whistle, the air being transferred to a sensor activating this way the rotor and generating a signal at input of microprocessor of the transmitting device which in turn activates a remote control transmitter of the transmitting device and via transmitting antenna of the device sends radio binary signals received by a receiving antenna of an electronic receiving device and sent to its remote control receiver resulting in appearance of binary signals at the output of the receiver which, after the data sequences being analyzed and decoded by microprocessor of the receiving device powered from a power pack, converts the data sequences into an executive signal which, by a relay, switches on the luminous signalling system of the receiving device and automatically connects said device electrically with appropriate leads feeding LEDs mounted in LED strips which, together with the single electronic receiving device, are installed on the surface of a playing field such as a pitch or a court or in a swimming pool in locations decisive for determining whether the game is played in accordance with rules of given sports discipline.

A method of remote controlling a luminous signalling system in the course of team game played by orally and aurally challenged players under the supervision of a referee or umpire equipped with whistle and a transmitting-receiving device. The referee uses, in cases provided by regulations applicable to the practiced sports discipline, an electronic whistle equipped with a rotor coupled with a reed relay, a sensor, and a transmitting device by blowing air into mouthpiece of the whistle, the air being transferred to a sensor activating this way the rotor and generating a signal at input of microprocessor of the transmitting device which in turn activates a remote control transmitter of the transmitting device and via transmitting antenna of the device sends radio binary signals received by a receiving antenna of an electronic receiving device and sent to its remote control receiver resulting in appearance of binary signals at the output of the receiver which, after the data sequences being analyzed and decoded by microprocessor of the receiving device powered from a power pack, converts the data sequences into an executive signal which, by a relay, switches on the luminous signalling system of the receiving device and automatically connects said device electrically with appropriate leads feeding LEDs mounted in LED strips which, together with the single electronic receiving device, are installed on the surface of a playing field such as a pitch or a court or in a swimming pool in locations decisive for determining whether the game is played in accordance with rules of given sports discipline.

An attachment system is formed by a primary device and a secondary device connected to the primary device in a pivoting manner. The primary device has a main body, two lateral sides and a bar for attaching the primary device to another object. Each of the lateral sides has a protrusion extending laterally outward from the lateral sides. The secondary device has two lateral sides, each equipped with an aperture that corresponds to one of the protrusions on the primary device, so that fitting the protrusions into the apertures pivotally connects the primary device to the secondary device, with the lateral sides of the secondary device being disposed outside of the lateral sides of the primary device. The secondary device can be pivoted between a folded position where the secondary device lies against the primary device, and an open position where the secondary device is raised up.