According to an embodiment, a hearing aid is disclosed. The hearing aid includes a first functional unit and a second functional unit. The second functional unit is configured to removably couple with the first functional unit. The coupling provides at least a mechanical connection between the first functional unit and the second functional unit. The first functional unit includes a moveable element that is configured to move between a first position and a second position. In the first position, the moveable element is contained entirely within the first functional unit. In the second position, a part of the moveable element is configured to protrude out of the first functional unit. The second functional unit includes a recess configured to receive the part of the moveable element that protrudes out of the first functional unit such that the first functional unit and the second functional unit are immovably locked with respect to each other in response to the moveable element is received in the recess.

According to an embodiment, a hearing aid is disclosed. The hearing aid includes a first functional unit and a second functional unit. The second functional unit is configured to removably couple with the first functional unit. The coupling provides at least a mechanical connection between the first functional unit and the second functional unit. The first functional unit includes a moveable element that is configured to move between a first position and a second position. In the first position, the moveable element is contained entirely within the first functional unit. In the second position, a part of the moveable element is configured to protrude out of the first functional unit. The second functional unit includes a recess configured to receive the part of the moveable element that protrudes out of the first functional unit such that the first functional unit and the second functional unit are immovably locked with respect to each other in response to the moveable element is received in the recess.

A mobile conference system including a first mobile master hands-free unit and a second mobile slave hands-free unit, each having a microphone, a loudspeaker, a battery unit, an operating unit, a lighting unit, and a first transmitting/receiving unit for bidirectional wireless communication between the first and second mobile hands-free units. The first mobile hands-free unit includes a second transmitting/receiving unit for wireless bidirectional audio communication with an external unit. The first mobile hands-free unit is configured to wirelessly transmit audio signals received from the external unit via the second transmitting/receiving unit to the second mobile hands-free unit via the first transmitting/receiving unit, to mix audio signals received from the second mobile hands-free unit via the first transmitting/receiving unit with audio signals recorded via the at least one microphone of the first hands-free unit, and to wirelessly transmit said audio signals to the external unit via the second transmitting/receiving unit.

A mobile conference system including a first mobile master hands-free unit and a second mobile slave hands-free unit, each having a microphone, a loudspeaker, a battery unit, an operating unit, a lighting unit, and a first transmitting/receiving unit for bidirectional wireless communication between the first and second mobile hands-free units. The first mobile hands-free unit includes a second transmitting/receiving unit for wireless bidirectional audio communication with an external unit. The first mobile hands-free unit is configured to wirelessly transmit audio signals received from the external unit via the second transmitting/receiving unit to the second mobile hands-free unit via the first transmitting/receiving unit, to mix audio signals received from the second mobile hands-free unit via the first transmitting/receiving unit with audio signals recorded via the at least one microphone of the first hands-free unit, and to wirelessly transmit said audio signals to the external unit via the second transmitting/receiving unit.

A mobile conference system including a first mobile master hands-free unit and a second mobile slave hands-free unit, each having a microphone, a loudspeaker, a battery unit, an operating unit, a lighting unit, and a first transmitting/receiving unit for bidirectional wireless communication between the first and second mobile hands-free units. The first mobile hands-free unit includes a second transmitting/receiving unit for wireless bidirectional audio communication with an external unit. The first mobile hands-free unit is configured to wirelessly transmit audio signals received from the external unit via the second transmitting/receiving unit to the second mobile hands-free unit via the first transmitting/receiving unit, to mix audio signals received from the second mobile hands-free unit via the first transmitting/receiving unit with audio signals recorded via the at least one microphone of the first hands-free unit, and to wirelessly transmit said audio signals to the external unit via the second transmitting/receiving unit.

A mobile conference system including a first mobile master hands-free unit and a second mobile slave hands-free unit, each having a microphone, a loudspeaker, a battery unit, an operating unit, a lighting unit, and a first transmitting/receiving unit for bidirectional wireless communication between the first and second mobile hands-free units. The first mobile hands-free unit includes a second transmitting/receiving unit for wireless bidirectional audio communication with an external unit. The first mobile hands-free unit is configured to wirelessly transmit audio signals received from the external unit via the second transmitting/receiving unit to the second mobile hands-free unit via the first transmitting/receiving unit, to mix audio signals received from the second mobile hands-free unit via the first transmitting/receiving unit with audio signals recorded via the at least one microphone of the first hands-free unit, and to wirelessly transmit said audio signals to the external unit via the second transmitting/receiving unit.

An electronic device including a main body, a driver module, and a plurality of expanded members is provided. The main body includes at least one image module. The driver module is movably disposed in the main body. The expanded members are disposed beside the main body and connected to the driver module, and each of the expanded members includes at least one of a radio module and a speaker module. The driver module is adapted to drive the expanded members to expand from a collapsed position to a use position, when the expanded members are located at the collapsed position, the expanded members are collapsed to the main body, and the expanded members are driven by the driver module to be expanded with respect to the main body and are moved to the use position.

A portable speakerphone having a housing, a receiving transducer, an electrical cable, a transmitting transducer, and a processor. The receiving transducer is affixed to the housing and is configured to receive a first electrical signal from a mobile device. The electrical cable is coupled to and extends from the housing. The transmitting transducer is affixed to the electrical cable, remote from the housing. Also, the transmitting transducer is configured to transmit a second electrical signal, and the second electrical signal is based in part on the first electrical signal. The processor is configured to suppress acoustic echo by modifying the second electrical signal. The processor is also configured to output the modified second electrical signal to the mobile device. A related method is also disclosed.

A portable speakerphone having a housing, a receiving transducer, an electrical cable, a transmitting transducer, and a processor. The receiving transducer is affixed to the housing and is configured to receive a first electrical signal from a mobile device. The electrical cable is coupled to and extends from the housing. The transmitting transducer is affixed to the electrical cable, remote from the housing. Also, the transmitting transducer is configured to transmit a second electrical signal, and the second electrical signal is based in part on the first electrical signal. The processor is configured to suppress acoustic echo by modifying the second electrical signal. The processor is also configured to output the modified second electrical signal to the mobile device. A related method is also disclosed.

An apparatus may include an inner module, an outer module that substantially surrounds a perimeter of the inner module, a plurality of light emitters, and a light distribution medium. The plurality of light emitters may be positioned under the inner module and project light radially outward. The light distribution medium may transport the light projected from the plurality of light emitters to an edge of the light distribution medium. The edge may include a diffusive surface and traverse a substantial portion of a boundary between the inner module and the outer module.