A recording system may use the information stored in a list to determine whether to receive and/or respond to messages transmitted by notice systems. The source of the information for the list includes a server and/or the recording system itself. A server that provides the list may use data provided by an agency to determine a relationship between a people, recording devices and notice systems. The associations between people, recording devices and notice devices may be used to determine what information is in the list. A recording device that forms the list may receive messages from any notice system, detect the session identifier, store the session identifiers from received messages, and receive and/or respond to messages in accordance with the list formed by the recording system.

A recording system may use the information stored in a list to determine whether to receive and/or respond to messages transmitted by notice systems. The source of the information for the list includes a server and/or the recording system itself. A server that provides the list may use data provided by an agency to determine a relationship between a people, recording devices and notice systems. The associations between people, recording devices and notice devices may be used to determine what information is in the list. A recording device that forms the list may receive messages from any notice system, detect the session identifier, store the session identifiers from received messages, and receive and/or respond to messages in accordance with the list formed by the recording system.

Some embodiments of the disclosure provide an expandable baton, which includes a plurality of sleeves, a positioning ring, a plurality of locking pieces and an unlocking rod, wherein the plurality of sleeves are retractably disposed in sequence in a nesting manner; the positioning ring is provided with an avoiding hole; the plurality of locking pieces are disposed at intervals around a peripheral side of the positioning ring and enclose an avoiding space, first axial ends of the plurality of locking pieces extend into the sleeve positioned on an inner side, and second axial ends of the plurality of locking pieces extend out of the sleeve positioned on the inner side and are stuck in a sleeve, positioned on an outer side, of the two adjacent sleeves to lock two adjacent sleeves in an extending state.

A device for averting danger includes a base body for attachment to a mobile communication device, wherein the base body surrounds the mobile communication device at least in regions, and wherein at least one active element is arranged on the base body and projects from the base body in such a way that the active element can be used as an impact amplifier.

A device for averting danger includes a base body for attachment to a mobile communication device, wherein the base body surrounds the mobile communication device at least in regions, and wherein at least one active element is arranged on the base body and projects from the base body in such a way that the active element can be used as an impact amplifier.

An expandable baton includes a first tube; a second tube disposed in the first tube; at least one lock mechanism disposed on a first end of the second tube, clamped to an inner surface of the first tube and including a locking pipe, two lock protuberances and two elastic members, the lock protuberances correspondent to each other and the elastic members disposed between the two lock protuberances; a release mechanism including a lock needle and a pushbutton, a pressing of the pushbutton moves the lock needle to insert into the lock mechanism, the lock protuberances depart from the first tube simultaneously and urge the elastic members to an unlocked position, without a pressing of the pushbutton, the restored elastic members enable the lock protuberances to a locked position; and a positioning member for limiting the release mechanism at a first end of the first tube.

An extendable baton has a base section, at least one extendable section and a control rod. The base section may be tubular and have a lengthwise axis and an annular recess on an inner surface of a distal end and a release button on a proximal end. The extendable section may be tubular and nest inside the base section. The extendable section includes a locking clutch including a single slot disposed on the proximate end, a clutch plate disposed at least partially within the slot, the clutch plate including a locking portion, which engages the annular recess and a control aperture portion having an aperture, and at least one spring disposed to bias the clutch plate outwardly from the slot of the extendable section. The control rod is insertable through the aperture to retract the clutch plate when the release button is depressed.

An ambidextrous survival self-defense tool having a first bar and a second bar. The first bar is designed with a plurality of ribs next to each other at least partially along the surface. One end of the first bar tappers to a point. The point is a blunt point, the point in blunt due to roundness of the point. A second end of the first bar has a first striker attached. The striker is a round ball. The second bar is attached to the first bar perpendicularly along the body of the first bar. The second bar has a striker at one end. The striker is a round ball. A glass breaking point is added to an end of the first bar. A belt cutter is imbedded into the first bar along the body.

An ambidextrous survival self-defense tool having a first bar and a second bar. The first bar is designed with a plurality of ribs next to each other at least partially along the surface. One end of the first bar tappers to a point. The point is a blunt point, the point in blunt due to roundness of the point. A second end of the first bar has a first striker attached. The striker is a round ball. The second bar is attached to the first bar perpendicularly along the body of the first bar. The second bar has a striker at one end. The striker is a round ball. A glass breaking point is added to an end of the first bar. A belt cutter is imbedded into the first bar along the body.

The composite whip described herein relates to the fields of self-defense and personal protection tools. The present invention is compact, concealable, and easy to use. The present invention allows a user to strike quickly, repeatedly, and from a distance to repel would be attackers. The tensioning mechanism of the present invention allows the user to increase or decrease the flexibility of the striking portion of the tool based on the user's preferences. The present invention can be carried in a multitude of discreet locations, and is a non-lethal defensive option. The present invention could be utilized in other fields such as law enforcement, or military, where carrying hand-held, non-lethal, self-defense tools are necessary.