Abstract: A behind-the-ear hearing aid is provided with an electric/acoustic transducer unit with a loud-speaker housing (53) in which there is a loud-speaker membrane 54. The housing (53) is spring-mounted in a capsule (59) in such a way that the capsule (59) and the loud-speaker housing (53) define an intermediate space (U53). The front (R1) of the membrane (54) is connected to the acoustic output (S) of the hearing aid, while the back (R2) is coupled to the intermediate space (U53) via coupling holes (55).

Abstract: A behind-the-ear hearing aid has a curved, hook-shaped shell that extends along a curved longitudinal axis of the hearing aid and into which are integrated transducers and electronics. A first end of the shell includes an acoustic output device to the ear. The shell defines a compartment located at a second end of the shell. The compartment is adapted to receive a battery, and has a cylinder axis that is substantially coaxial with the longitudinal axis of the hearing aid. The hearing aid includes an attachment module that includes a first portion having an outer cross-sectional contour corresponding to the outer cross-sectional contour of the hearing aid and a second portion having a reduced length of the outer cross-sectional contour, and the module is fitted with a rechargeable battery. The rechargeable battery is provided in the first portion and a voltage regulator is provided in the second portion.

Abstract: An in-the-ear hearing aid having multiple directional microphones connected to a signal processing unit. The connection of the microphones can be reversed by a selector switch to selectively switch the hearing aid between a left-ear configuration and a right-ear configuration.

Abstract: A behind-the-ear hearing aid is provided with an electric/acoustic transducer unit with a loud-speaker housing (53), in which there is a loud-speaker membrane 54. The housing (53) is spring-mounted in a capsule (59) in such a way that the capsule (59) and the loud-speaker housing (53) define an intermediate space (U53). The front (R1) of the membrane (54) is connected to the acoustic output (S) of the hearing aid, while the back (R2) is coupled to the intermediate space (U53) via coupling holes (55).