Modular in-ear device

1. An in-ear device, comprising:

a molding custom shaped prior to insertion into an ear to match a geometry of the ear and to hold the in-ear device in the ear;

an audio package including audio electronics configured to emit sound, wherein the audio package is structured to removably attach to the molding; and

an electronics package structured to removably snap to the audio package and removably attach to the molding, wherein the electronics package includes a controller to control the sound output from the audio package, a battery, and wherein the electronics package is shaped to connect with a charging container.

2. The in-ear device of claim 1 , wherein the molding includes a cavity, wherein the audio package includes a first housing in which the audio electronics are disposed, and wherein the first housing is shaped to removably fit into the cavity.

3. The in-ear device of claim 1 , wherein the audio electronics include one or more balanced armature drivers or a coil-based speaker to emit the sound.

4. The in-ear device of claim 1 , wherein the battery is coupled to supply power to the controller and to the audio package when the electronics package is coupled to the audio package, and wherein the electronics package further includes:

charging circuitry coupled to charge the battery.

5. The in-ear device of claim 1 , wherein the electronics package further includes communication circuitry to receive wireless signals from an external device.

6. The in-ear device of claim 1 , wherein the audio package mechanically attaches to the molding, and wherein the electronics package magnetically attaches to the audio package.

7. The in-ear device of claim 6 , wherein the audio package includes first electrodes, and the electronics package includes second electrodes, and wherein the first electrodes and the second electrodes are positioned to self-align when the electronics package magnetically attaches to the audio package.

8. The in-ear device of claim 1 , wherein the electronics package includes one or more microphones positioned to record a second sound and output second sound data to the controller.

9. The in-ear device of claim 8 , wherein the controller includes logic that when executed by the controller causes the in-ear device to perform operations including:

in response to receiving the second sound data with the controller, emitting the sound from the audio package to reduce a magnitude of the second sound received by an eardrum in the ear.

10. The in-ear device of claim 2 , wherein the electronics package includes a second housing in which the controller is disposed and sealed separate from the audio electronics, wherein the first housing, the second housing, and the molding are distinct and separable from each other.

11. The in-ear device of claim 10 , wherein the cavity is a hollowed out portion of the molding and shaped to receive and removably hold the first housing of the audio package and the second housing of the electronics package.

12. A method of using an in-ear device, including:

removably attaching a molding, custom shaped prior to insertion into an ear to match a geometry of the ear and to hold the in-ear device in the ear, to an audio package including audio electronics configured to emit sound;

removably snapping an electronics package to the audio package, wherein when the electronics package is snapped to the audio package the electronics package is coupled to communicate with the audio package, and wherein the electronics package includes a controller to control the sound output from the audio package;

removing the electronics package from the audio package; and

placing the electronics package in a charging container shaped to receive the electronics package.

13. The method of claim 12 , further comprising:

charging the electronics package using the charging container, wherein the charging container includes charging circuitry to provide power to the electronics package when the electronics package is disposed within the charging container.

14. The method of claim 12 , further comprising, after removably attaching the electronics package to the audio package, emitting sound from one or more balanced armature drivers or coil-based speakers disposed in the audio package.

15. The method of claim 14 , further comprising:

receiving second sound from one or more microphones disposed in the electronics package; and

in response to receiving the second sound, emitting the sound from the one or more balanced armature drivers or coil-based speakers to reduce a magnitude of the second sound received by an eardrum in the ear.

16. The method of claim 12 , further comprising

receiving data with communication circuitry disposed in the electronics package; and

emitting the sound from the audio package in response to receiving the data, after attaching the electronics package to the audio package.

17. The method of claim 12 , wherein snapping the electronics package to the audio package comprises coupling the electronics package to the audio package by (i) a magnet, (ii) a friction member, (iii) a chemical adhesive, or (iv) at least two elements selected from a group comprising (i), (ii), and (iii).

18. An in-ear device, comprising:

a molding shaped to hold the in-ear device in an ear, wherein the molding comprises a polymer material that is pre-shaped prior to insertion into the ear to match a geometry of the ear;

an audio package including audio electronics configured to emit sound, wherein the audio package is disposed within a first housing that removably inserts into a cavity of the molding; and

an electronics package including:

a controller to control the sound output from the audio package, wherein the electronics package is disposed within a second housing, separate and distinct from the first housing, that removably snaps to the audio package, wherein the first and second housings include electrodes that align to each other when the first and second housings are inserted into the cavity to electrically connect the electronics package to the audio package; and

a battery, wherein the electronics package is shaped to connect with a charging container.

19. The in-ear device of claim 18 , wherein the second housing snaps to the audio package by (i) a magnet, (ii) a friction member, (iii) a chemical adhesive, or (iv) at least two elements selected from a group comprising (i), (ii), and (iii).