A measurement system includes earphones configured to be worn on left and right ears of a user respectively and a wireless terminal. The earphones measure and accumulate usage time during the earphones are used by a user, and transmit accumulated usage time to the wireless terminal. The wireless terminal acquires the accumulated usage time from the earphones, determines whether the accumulated usage time exceeds predetermined time, and generates a notification for urging the user to clean the earphones when it is determined that the accumulated usage time exceeds the predetermined time.

The present invention provides for a woven mesh element for an electroacoustic driver enclosure, and to an electroacoustic driver enclosure including such an element, wherein the element includes a plurality of mesh layers, and wherein the plurality of layers includes a layer of Dutch weave mesh preferably including a layer of Dutch Twill weave mesh, and in particular wherein the element includes plural layers of cross woven wire mesh and a layer of Dutch weave wire mesh.

The present disclosure relates to a loudspeaker. The loudspeaker may include a loudspeaker mechanism, a fixing mechanism, and a connector. The loudspeaker mechanism may be configured to generate a vibration signal and transmit the vibration signal to the human body. The fixing mechanism may be configured to support and maintain the position of the loudspeaker mechanism. The connector may be configured to connect the loudspeaker mechanism with the fixing mechanism. The loudspeaker mechanism may at least include a first fixed position and a second fixed position. The first fixed position may be a fixed position of the loudspeaker when the loudspeaker is in a non-working state. The second fixed position may be a fixed position of the loudspeaker when the loudspeaker is in a working state. The connector may be configured to switch the loudspeaker mechanism between the first fixed position and the second fixed position.

An internet protocol (IP)-based ceiling or wall-mounted speaker with optional IP-based camera and/or alarm indicator is provided. The IP-based speaker has a detachable add-on device for accommodating different types of interchangeable camera configurations and other components such as flush mount camera, camera providing angled view, night vision-type camera for different services and configurations. Multiple IP-based speakers are connected to an IP device to exchange audio data via an Ethernet connection for cost effective, flexible and convenient installations. The IP-based speaker has a speaker cone for talkback features, and relay for remote relay control of doors or gates for security applications as well as public address applications.

The present application relates to a sound production unit and a speaker. The sound production unit includes: a frame, where the frame has a receiving space; a magnetic path system, where the magnetic path system is arranged in the receiving space, and a magnetic gap is formed in the magnetic path system; a vibration system, where the vibration system includes a first diaphragm and a second, a first voice coil assembly inserted into the magnetic gap to drive the first diaphragm to vibrate to produce a sound, and a second voice coil assembly inserted into the magnetic gap to drive the second diaphragm to vibrate to produce a sound; and an end cover. Vibrations of the sound production unit or the speaker and the like can be counteracted; cophase stacking can also be performed on sound waves; and the acoustics effect of the speaker is enhanced.

The present disclosure discloses an earphone charging device including a lower box portion having a main control circuit, an upper cap portion covering the lower box portion, and a display screen positioning around the lower box portion. The display screen includes a first portion firmly secured to the lower box portion and at least one second portion floatably connected to the lower box portion. The present disclosure can not only provide a high-leveled visual feeling of the large screen, but also realize a rapid storage of the display screen.

An assembly may include a speaker supportable for movement relative to a reference external to the speaker and a speaker housing supporting speaker components operable to produce an audio output. A sensor is operable to sense a direction of movement of the speaker during movement of the speaker relative to the reference. Control components are operable to control the speaker components based on the direction of movement of the speaker relative to the reference. When the speaker is sensed to be moving in a first direction relative to the reference, an operational characteristic of the speaker components is controlled to increase or advance during movement in the first direction. When the speaker is sensed to be moving in a second direction relative to the reference different from the first direction, the operational characteristic of the speaker components is controlled to decrease or retreat during movement in the second direction.

An apparatus comprising: an audio signal analyzer configured to analyze at least one audio signal to determine at least one audio component with an associated orientation parameter; a reference definer configured to define at least one of: a reference orientation for an apparatus; and a reference position for the apparatus; a directional determiner configured to determine a direction value based on the reference orientation/position for the apparatus and at least one of: an orientation of the apparatus; a position of the apparatus; an orientation of a further apparatus co-operating with the apparatus; and a position of the further apparatus; and a directional processor configured to process at least one associated directional parameter for the at least one audio component dependent on the direction value.

An internet protocol (IP)-based ceiling or wall-mounted speaker with optional IP-based camera and/or alarm indicator is provided. The IP-based speaker has a detachable add-on device for accommodating different types of interchangeable camera configurations and other components such as flush mount camera, camera providing angled view, night vision-type camera for different services and configurations. Multiple IP-based speakers are connected to an IP device to exchange audio data via an Ethernet connection for cost effective, flexible and convenient installations. The IP-based speaker has a speaker cone for talkback features, and relay for remote relay control of doors or gates for security applications as well as public address applications.

The present disclosure relates to a loudspeaker. The loudspeaker may include a loudspeaker mechanism, a fixing mechanism, and a connector. The loudspeaker mechanism may be configured to generate a vibration signal and transmit the vibration signal to the human body. The fixing mechanism may be configured to support and maintain the position of the loudspeaker mechanism. The connector may be configured to connect the loudspeaker mechanism with the fixing mechanism. The loudspeaker mechanism may at least include a first fixed position and a second fixed position. The first fixed position may be a fixed position of the loudspeaker when the loudspeaker is in a non-working state. The second fixed position may be a fixed position of the loudspeaker when the loudspeaker is in a working state. The connector may be configured to switch the loudspeaker mechanism between the first fixed position and the second fixed position.