A loudspeaker containing a sound-generating element and a grill mounted as a cover in front of the sound-generating element. The grill has optically transparent areas. At least one lighting element is mounted between the sound-generating element and the grill, the lighting element being visible from the outside through the optically transparent areas of the grill when illuminated.

An electronic device according to an embodiment includes a speaker capable of outputting a sound wave, a sensor capable of acquiring an optical signal related to blood flow at a measured part of a user, and a controller configured to measure blood flow information of the measured part based on the optical signal. The controller estimates a sleep state of the user based on the blood flow information and controls, based on the sleep state, a sound wave outputted from the speaker.

A far-field speech support with a lens function and an electrical device are provided. The far-field speech support includes: a base, a far-field speech board installation portion disposed on the base and configured to install a far-field speech board, a transparent light guide plate disposed on a bottom side of the far-field speech board installation portion, a buckle structure disposed on the base and configured to install an infrared receiving head assembly, and an infrared reflective portion disposed corresponding to the transparent light guide plate and disposed below the infrared receiving head assembly. The far-field speech support acts as a lens, provides an installation space for the far-field speech board, and facilitates installation of the far-field speech board.

This application discloses a microphone that includes a handle portion, a control portion, and a microphone head that are connected in sequence. The control portion includes a first circuit board and multiple light-emitting assemblies arranged along a perimeter of the control portion. The first circuit board is electrically connected to the multiple light-emitting assemblies for controlling the multiple light-emitting assemblies to emit light in a preset light-emitting mode. In the solution of this application, multiple light-emitting assemblies are arranged in the control portion, so that when in use, the color of the light and the brightness of the light-emitting assembly can be automatically changed according to the microphone song or through a control button, so that the multiple light-emitting assemblies of the microphone can illuminate in a preset manner.

The light-emitting device includes a main body, a light-emitting module, and a press part located on the main body and configured to control on or off of the light-emitting module. The main body is provided with an accommodation space having the light-emitting module arranged therein. The main body includes a light guide, and light emitted by the light-emitting module is emitted outside of the main body through the light guide. The light guide includes a light exit surface and a light entrance surface. The light entrance surface is located on the circumferential inner sidewall of the accommodation space, and the light exit surface is located on the circumferential outer sidewall of the main body, and light emitted by the light-emitting module is emitted outside along a side of the main body.

A sound-producing structure includes: a hollow piece; a sound-producing piece located in a hollow cavity of the hollow piece; and a heat dissipation piece located outside the hollow cavity, a first part of the heat dissipation piece being located below the hollow piece and a second part of the heat dissipation piece being on a side wall of the hollow piece.

An audio apparatus has a housing, speakers, a subwoofer, and an amplifier. The housing has an upper surface, a lower surface, a lateral surface, and connectors. The upper surface has an upper edge, with the upper surface having first and second upper surfaces. The lower surface has a lower edge, with the lower surface having first and second lower surfaces. The lateral surface extends from the upper edge to the lower edge, with the lateral surface having first and second lateral surfaces and speaker openings. The first upper surface, the first lower surface, and the first lateral surface define a first portion of the housing. The second upper surface, the second lower surface, and the second lateral surface define a second portion of the housing. The first portion is connected to the second portion by the connectors. Each of the speakers is mounted over one of the speaker openings. The subwoofer is mounted to the lower surface. The amplifier is mounted to the housing, with the amplifier in communication with the one or more speakers and with the subwoofer to generate sound from the one or more speakers and the subwoofer.

A sound emitting device is disclosed. The sound emitting device has a housing with a top side, a bottom side opposite the top side, and a housing periphery extending therebetween. A middle area is disposed at a center of the top side wherein the middle area comprises a sealed surface. The sound emitting device has one or more transducers disposed within the housing wherein at least one of the one or more transducers are positioned to emit sound at the sealed surface. While a container of liquid sits on the sealed surface at the top side, the one or more transducers are configured to emit a sound that travels through the sealed surface into the container of liquid.

A system includes an accessory for a mobile computing device, the accessory including a body defining an interior configured to secure a mobile computing device, a communications module configured to receive an electronic command to eject a projectile, and a projectile launcher, coupled to the body, configured to eject a projectile in response to the command. The system also includes a projectile disposed in the projectile launcher.

An audio system with a loudspeaker configured to create an audio output, a sensor configured to detect at least the presence of at least one person at a position relative to the loudspeaker, and a processor configured to cause the loudspeaker to alter the audio output based on the position of the at least one person relative to the loudspeaker. Altering of the audio output includes adjusting at least one of a volume, a time delay, an equalization, or a radiation pattern of the audio output.