Audio-Technica Corporation

Provided are a headphone system, a headphone, and a headphone charger that have a new blinking mode during battery charging. The headphone system includes the headphone, the headphone charger that charges the headphone, and an indicator lamp that blinks and indicates a charging status of at least one of the headphone, the charger, or both the headphone and the charger. The indicator lamp is provided with at least one of the headphone, the headphone charger or both the headphone and the charger. A blinking period includes a first period during which a luminance of the indicator lamp gradually increases, and a second period during which the luminance gradually decreases. The first period and the second period are alternately repeated. The duration of the first period is different from the duration of the second period.

Provided is an earphone device that enables desired functions without causing stress to users when the device is worn in an ear. The earphone device includes a sound emitting unit to be worn in the user's ear. The unit includes an antenna receiving an audio signal, a driver unit driven by the audio signal received by the antenna, and a battery storing power for the antenna. The battery is charged with the unit accommodated in a charger. The unit is inactive with the unit accommodated in the charger and active with the unit removed from the charger. The unit in the active state includes first and second operating modes. When a state of the unit is switched from the inactive state to the active state, the operating mode of the unit for a predetermined time after the switching is the first operating mode.

Provided is a microphone device with a reduced impact on a windscreen (a windscreen part) caused by an installed environment. The microphone device includes a microphone that outputs an electrical signal in response to a sound wave, a housing portion that accommodates the microphone, and a windscreen part that reduces a pressure of wind caused by the wind entering into the housing portion. The housing portion includes a hollow cylindrical housing body and a cap attached to one end of the housing body in the axial direction of the housing body. The windscreen part is accommodated in the housing body and disposed between the cap and the microphone. The cap is solid. The cap includes a sound guide hole that guides the sound wave to the microphone. The sound guide hole is disposed along the axial direction.

An electro-acoustic transducer includes: a housing, a partition member disposed inside the housing, a first electro-acoustic conversion unit, and a second electro-acoustic conversion unit. The first electro-acoustic conversion unit includes a fixed electrode, a vibrating membrane, and a support member that supports a partial region of the vibrating membrane and brings a part of the vibrating membrane in contact with the fixed electrode. The first electro-acoustic conversion unit and the second electro-acoustic conversion unit are disposed facing each other across the partition member so that a sound emitting part and a sound emitting part communicate with an acoustic outlet, and the partition member supports the support member and the support member.