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 door knocker for use by a cat for requesting entry into a house. This knocker comprises a mounting block attached to a door surface; a longitudinal spring having a first end mounted to the mounting block and a second end extending vertically downward from the first end. A hardwood ball is mounted to the second end. The ball is held at a knocking distance from the door surface. A string with loose frayed ends is attached to the second end of the spring near the ball. A cat coming near the door knocker is attracted to the string with frayed ends and instinctively starts to play with the string to operate the door knocker into a series of repetitive door knocks. The door knocker according to the present invention does not require any significant physical or mental effort from a cat.

A door knocker for use by a cat for requesting entry into a house. This knocker comprises a mounting block attached to a door surface; a longitudinal spring having a first end mounted to the mounting block and a second end extending vertically downward from the first end. A hardwood ball is mounted to the second end. The ball is held at a knocking distance from the door surface. A string with loose frayed ends is attached to the second end of the spring near the ball. A cat coming near the door knocker is attracted to the string with frayed ends and instinctively starts to play with the string to operate the door knocker into a series of repetitive door knocks. The door knocker according to the present invention does not require any significant physical or mental effort from a cat.

A portable panic alarm assembly includes a housing and an audible alarm device mounted within the housing. The alarm device is electrically and operably interconnected between first and second alarm contacts. A battery mounted within the housing has a pair of oppositely charged electrodes. A first electrode is connected to the first alarm contact. An actuator switch is slidably mounted in the housing and includes an actuator contact. The actuator switch is operably alternated between an open state, wherein the second battery electrode is disconnected from the second alarm contact to deactivate the alarm and a closed state, wherein the second battery electrode is connected to the second alarm contact to activate and sound the alarm.

A portable panic alarm assembly includes a housing and an audible alarm device mounted within the housing. The alarm device is electrically and operably interconnected between first and second alarm contacts. A battery mounted within the housing has a pair of oppositely charged electrodes. A first electrode is connected to the first alarm contact. An actuator switch is slidably mounted in the housing and includes an actuator contact. The actuator switch is operably alternated between an open state, wherein the second battery electrode is disconnected from the second alarm contact to deactivate the alarm and a closed state, wherein the second battery electrode is connected to the second alarm contact to activate and sound the alarm.

The water conduit flow indicator is a device that is configured to be installed between a spigot and a water conduit in order to provide an audible alarm that water fluid is flowing through the device. The water conduit flow indicator is further defined with a housing that features an inlet and an outlet. The housing includes an internal partition that separates a fluid side from a dry side. Located within the housing is a pair of impeller blades. The pair of impeller blades is further defined with a fluid impeller blade and a dry impeller blade. The dry side of the housing includes a ringer bell that comes into contact with the dry impeller blade such that as the dry impeller blade rotates, the ringer bell generates an audible noise that alerts an end user as to the fluid flow occurring through the water conduit flow indicator.

This watching system is provided with: a watching detection device that is provided with a cartilage conduction vibration source, a mastication sensor, and a bone conduction microphone and that is configured to be mounted on an ear such that the entry of the ear canal is opened; and a mobile phone or an in-home monitoring unit that receives watching detection signals from the mastication sensor and the bone conduction microphone by means of short-range communication and issues a notification to the outside. The watching detection device has an air conduction microphone and also functions as a hearing aid. When detection signals cannot be received from the mastication sensor or the bone conduction microphone for a predetermined time period, a notification is issued. The mobile phone and the in-home monitoring unit crosscheck watching detection information. The mobile phone also issues a notification of information indicating that there is no abnormality.

This watching system is provided with: a watching detection device that is provided with a cartilage conduction vibration source, a mastication sensor, and a bone conduction microphone and that is configured to be mounted on an ear such that the entry of the ear canal is opened; and a mobile phone or an in-home monitoring unit that receives watching detection signals from the mastication sensor and the bone conduction microphone by means of short-range communication and issues a notification to the outside. The watching detection device has an air conduction microphone and also functions as a hearing aid. When detection signals cannot be received from the mastication sensor or the bone conduction microphone for a predetermined time period, a notification is issued. The mobile phone and the in-home monitoring unit crosscheck watching detection information. The mobile phone also issues a notification of information indicating that there is no abnormality.

The disclosure relates to a drug delivery device, comprising a mechanical audible indicator capable of producing an audible signal with a volume of at least 100 dB.