A method for checking a PPG sensor of a hearing apparatus that has a rechargeable battery. A charger has a receiving space for the hearing apparatus and a testing environment for testing the functionality of the PPG sensor. The hearing apparatus is placed in the receiving space and the test environment is used to perform a function test on the PPG sensor.

A hearing instrument charger device for charging an individually shaped hearing instrument, includes: a charger casing; a charger power supply within the charger casing; a first charger coil connected to the charger power supply; charger electronics for controlling charging of the hearing instrument; and a holder configured for receiving the hearing instrument, the holder located within the charger casing; wherein the holder for the hearing instrument has a shape that is specific for the individually shaped hearing instrument, such that when the individually shaped hearing instrument is received in the holder, a second charger coil of the individually shaped hearing instrument is in an operative position for receiving charging power from the first charger coil of the hearing instrument charger device.

A system with a first hearing device including a rechargeable power source, a second hearing device including a rechargeable power source, and a hearing device charger including a charger housing, a power source, charge circuitry operably connected to the power source, a first charge location and a second charge location. The first hearing device, the second hearing device and the hearing device charger may be respectively configured such that the first hearing device will be magnetically attracted to the hearing device charger in response to the first hearing device being positioned at the first charge location, the first hearing device will be magnetically repelled by the hearing device charger in response to the first hearing device being positioned at the second charge location, the second hearing device will be magnetically attracted to the hearing device charger in response to the second hearing device being positioned at the second charge location, and the second hearing device will be magnetically repelled by the hearing device charger in response to the second hearing device being positioned at the first charge location.

A bone conduction audio apparatus includes at least one ear hook assembly. A main circuit board is provided in the ear hook assembly. Each ear hook assembly includes an operating unit, a line concentrator and a bone conduction transducer. Each operating unit is electrically connected with corresponding line concentrator by contact springs or connecting wires, and connected with the main circuit board via the line concentrator. Each bone conduction transducer is electrically connected with the main circuit board via corresponding line concentrator. A controller of the main circuit board receives touch signals from all operating units to determine and initiate relating earphone operating. The bone conduction audio apparatus adopts bilateral triggering interaction mechanism. The line concentrator is combined with the suspended bone conduction transducer.

A Personal Communication Device (PCD) is provided and includes a microphone, a speaker, and a PCD body, wherein the PCD body is configured as an ear cuff and includes a body first end, a body second end and a body middle portion. The PCD body further includes sound processing electronics, such that when a sound is received by the microphone, the sound processing electronics process the sound to generate a processed sound and communicates the processed sound to the speaker and outputs the processed sound into the user's ear canal, wherein the PCD is configured to be securely associated with an ear of a user such that when the PCD is associated with the ear of the user, and wherein the PCD is configured for wireless connectivity.

Systems and methods for estimating a state of charge of a hearing aid rechargeable battery for rapid user feedback and charge management are provided. The method includes detecting a rechargeable battery of a hearing aid received at a battery charger. The method includes retrieving a last state of charge (SoC) of the rechargeable battery and a time in use of the rechargeable battery. The time in use is a time the hearing aid is out of the battery charger. The method includes estimating a current state of charge (SoC) of the rechargeable battery based on the last SoC and the time in use of the rechargeable battery. The method includes causing a display of the battery charger to present the estimated current SoC.

The flexible attachable tip is manufactured to repeatedly connect as well as disconnect to a body of a hearing assistance device. The flexible attachable tip is manufactured to have two or more offset layers of flexible earmolds. The tip has a dome-shaped earmold that is separated by an air gap from offset layers of inner earmolds. Each layer of ear mold has multiple bendable members with an air vent constructed into the bendable members for that earmold. Air space is formed in between each of the individual bendable members making up the flexible earmold for a given layer of the offset layers. The flexible earmolds including their bendable members bend to a deformed state in order to secure the hearing assistance device in position inside an ear canal, which prevents the device from falling out of an ear, while still providing both a sound path and an airflow path through the ear canal.

A method of operating a hearing assistive device having a rechargeable battery, and comprises reading battery status data from a battery controller during use of the hearing assistive device, transferring the battery status data wirelessly from the hearing assistive device to a computing device and predicting, in the computing device, a remaining battery time for the rechargeable battery based upon the battery status data received. Once the remaining battery time is predicted, it is compared with a predefined use pattern for hearing assistive device and a user becomes notified if a conflict between the remaining battery time and the predefined use pattern is observed.

A hearing assistive device having an antenna component with a common antenna feed with a switching component. The antenna component has a first branch with a first resonance frequency and a second branch with a second resonance frequency. The hearing assistive device switches between a communication state and a wireless charging state. In the communication state a transceiver is connected to the antenna component, and in the wireless charging state a wireless charging unit is connected to the antenna component.

A method includes connecting a device to a charger and providing wireless charging in a state of charge by transferring energy wirelessly from a transmitter module of the charger to a reception module of the device. The device has a state of discharge in which energy is consumed. The device includes a charging connector, to which a charging input voltage adjustable by the charger is applied for charging. The device includes a switching connector for turning the device on and off. The device includes a switch connected to the switching connector and being switchable by the charging input voltage by setting the charging input voltage to an intermediate voltage. The charger sets the charging input voltage to the intermediate voltage for switching the switch and transitioning the device into an off state with the device turned off. A corresponding device and charger are also provided.