Abstract: A hearing aid includes a first portion adapted for behind-the-ear placement having a microphone, a second portion adapted for in-the-canal placement having a receiver and a cable that couples the first portion to the second portion, the cable having an adjustable length.

Abstract: A hearing aid comprises a microphone that receives incident sound waves from one or more sources external to the hearing aid, and converts the sound waves into electronic signals; a circuit that amplifies the electronic signals; a receiver that converts the amplified electronic signals into amplified sound waves; and a tuned resonant cavity between the microphone and the at least one external sound source. At least one parameter of the tuned resonant cavity is selected to modify the frequency response of the incident sound waves that are received by the microphone. In particular, the geometry of one or more openings through which sound waves enter the chamber, the geometry of the chamber itself, and/or the geometry of one or more openings through which sound waves exit the chamber, are selected to condition the incident sound waves by modifying the frequency response of the audio signal prior to the signal being received at the microphone.

Abstract: A hearing aid includes a circuit board having a battery affixed thereon and a switch that utilizes a portion of the circuit board as a portion of the switch. The battery is permanently affixed to the circuit board in at least one location and at least a portion of the battery is spaced away from the circuit board. The circuit board further includes at least one pair of printed switch traces. The switch is integrated into the circuit board in a way that utilizes the circuit board to form a rotary switch.

Abstract: A hearing aid includes a hearing aid shell, a microphone enclosed within the hearing aid shell, and a sealing member that surrounds the periphery of the microphone enclosed within the hearing aid shell, and a sealing member that surrounds the periphery of the microphone. The sealing member completely fills the area between the periphery of the microphone and the interior surface of the hearing aid shell.

Abstract: A hearing aid includes a circuit board having a battery affixed thereon and a switch that utilizes a portion of the circuit board as a portion of the switch. The battery is permanently affixed to the circuit board in at least one location and at least a portion of the battery is spaced away from the circuit board. The circuit board further includes at least one pair of printed switch traces. The switch is integrated into the circuit board in a way that utilizes the circuit board to form a rotary switch.

Abstract: In an illustrative embodiment of the present invention, a selector module is provided to a user for selecting one of multiple acoustical formats of a hearing aid device. Generally, a keypad is pressed by a user to select an acoustical format, whereby a command is transmitted to the hearing aid. In a specific application, the command is transmitted via a wireless protocol. A received command is then decoded to program the hearing aid to a selected acoustical format. Preferably, the acoustical format defines an acoustical response of the hearing aid device for an entire continuous range of frequencies detectable by a human ear.

Abstract: In an illustrative embodiment of the present invention, a hearing aid device is tethered to a selector module via a cable. A keypad of the selector is pressed to program the hearing aid device with a particular acoustical format. More specifically, a command generated by the selector module is received at the hearing aid test unit to program a corresponding acoustical format. Consequently, a hearing impaired patient can reprogram the hearing aid device to compare which of multiple formats provides an optimal response for use.