Various implementations include headphone systems. In one implementation, a headband for a headphone system, includes: a continuous spring section sized to extend over a head of a user; an earcup mount coupled with an end of the continuous spring section, the continuous spring section and the earcup mount forming an arcuate joint, and the earcup mount configured to rotate relative to the continuous spring section at the arcuate joint; and a friction assembly spanning between the continuous spring section and the earcup mount, the friction assembly linearly arranged across the arcuate joint and configured to provide a substantially constant resistance to the rotation of the earcup mount relative to the continuous spring section, where the friction assembly includes a coupler having a primary axis extending across the arcuate joint, where the earcup mount rotates off-axis relative to the primary axis of the coupler.

Disclosed is a ring shaped wearable communication device (ring) for a user's finger. The ring includes: a sound sensor that detects ambient sound levels; a speaker that produces sound in human audible frequency range per at least one signal received, wherein intensity of the sound produced is based on the ambient sound level; an out port; and a hollow channel with an increasing cross-section that wraps around the finger, wherein: smaller cross-section end of the hollow channel is connected to the speaker and the other end of the hollow channel is connected to the out port to provide a horn-like structure; the out port and the hollow channel are configured to reduce the mismatch between the acoustic impedance of air immediately outside the out port and the acoustic impedance as seen by the speaker just outside the speaker; and the out port emits sound received from the speaker as directional sound in close vicinity of the user's hand.

A novel loudspeaker with a reflex enclosure that has the reflex port terminating to the bottom of the enclosure. The loudspeaker further includes a stand which is removably attached to the bottom of the enclosure so as to create a clearance between the bottom and the surface supporting the loudspeaker.

A head-mounted display apparatus and an acoustic device disposed in the head-mounted display apparatus are provided. The acoustic device includes a speaker, a resonance box, and a waveguide. The resonance box is connected to the speaker. The waveguide is connected to the resonance box. The volume of the waveguide is greater than twice the volume of the speaker, and the length of the waveguide is greater than 5 times the thickness of the speaker.

The present application discloses a speaker box including a housing body with an accommodation space and a speaker unit accommodated in the accommodation space. The speaker unit includes a diaphragm separating the accommodation space into a front acoustic cavity and a back cavity. The speaker box further has a heat conductor disposed on the housing body. The heat conductor is used to conduct the heat generated by the heating element to the sound channel and the front acoustic cavity. The mobile terminal adopts the speaker box. Comparing with the related technology, the speaker box provided by the present application can sound and dissipate heat for the mobile terminal.

The present application provides a speaker device having a speaker box, a heat source and a thermally conductive element. The speaker box includes a housing body with a first accommodation space, a speaker unit accommodated in the first accommodation space and a thermally conductive covering plate. The speaker unit comprises a diaphragm partitioning the first accommodation space into a front acoustic cavity and a back cavity, and a through opening. The thermally conductive element connects the speaker box with the heat source for providing improved heat radiation efficiency.

A sounding device includes a speaker box, and a thermally conductive member. The speaker box has a first housing body with a first accommodation space and a speaker unit accommodated in the first housing body. The speaker unit includes a diaphragm dividing first accommodation space into a front acoustic cavity between the diaphragm and the first housing body. The thermally conductive member includes a first part, a second part connected with the heat source component. The heat generated by the heat source component is conducted to the air in the sound channel through the thermally conductive member. By virtue of an air cooling effect of the speaker unit, the heat of the thermally conductive member is rapidly conduced into outer air, and thus the heat radiation efficiency can be remarkably improved.

A speaker housing of the present invention is a speaker housing for housing a speaker unit, wherein a first rib and/or a second rib whose distance from the speaker unit continuously changes is provided inside the speaker housing, so that the distance from the speaker unit to the first rib and/or the second rib is not constant, resonance is dispersed, no remarkable resonance occurs, and deterioration of distortion can be reduced.

The present invention provides a speaker box and an electronic device. The speaker box includes: a case having a receiving space; a speaker body having a sound outlet and received in the receiving space; and a graphite sheet received in the receiving space and connected to both the speaker body and the case. The speaker body divides the receiving space into a front cavity in communication with the sound outlet and a rear cavity opposite to the front cavity. The electronic device uses the speaker box. Compared with the related art, the speaker box and the electronic device provided by the present invention have a better heat dissipation effect.

A speaker box includes a housing and a speaker unit accommodated in the housing. The speaker unit includes a diaphragm configured to vibrate and sound. The diaphragm is spaced from the housing to form a front sound cavity therebetween. The speaker box further includes a sound transmitting channel communicating the front sound cavity with outside. The front sound cavity and the sound transmitting channel cooperatively form a front cavity of the speaker box. A sound absorption layer is disposed at a portion of the housing facing the front cavity. The sound absorption layer includes a micro-porous structure. When the sound wave passes through the front cavity, the sound absorption layer is capable of absorbing the resonance vibration of the front cavity in high frequency, thus suppressing the amplification of the sound distortion due to the resonance vibration of the front cavity and improving the acoustic performance of the speaker box.