Eartip with tether

1. An eartip, comprising:

a) a resilient body having an inner end for insertion into an ear, an outer end, and a length therebetween, having an open center extending through the length of the body substantially from the outer end to the inner end;

b) an eartip core inside the open center of the body, having an inner end adjacent to the inner end of the body, an outer end adjacent the outer end of the body, and a length therebetween with an open central passage from the inner end to the outer end; and

c) a tether having a first end coupled to the eartip core at an attachment region along the length of the core, a free end and a length therebetween, the free end of the tether extending outward from the outer end of the eartip core.

2. The eartip of claim 1 , in which the inner end of the eartip core is recessed within the open center of the body from the inner end of the body.

3. The eartip of claim 1 , further comprising an earpiece having a body molded to fit within an ear, a nipple coupled to the outer end of the eartip core, a speaker, and a sound channel acoustically coupled to the speaker and passing through the body of the earpiece and the nipple, such that when the nipple is coupled to the outer end of the eartip core, at least part of the length of the tether is within the sound channel of the earpiece.

4. The eartip of claim 3 , in which the outer end of the eartip core protrudes from the outer end of the body, for attachment of the eartip to the nipple of the earpiece.

5. The eartip of claim 1 in which the resilient body of the eartip further comprises a plurality of flanges of elastomeric material.

6. The eartip of claim 1 , in which the free end of the tether comprises a ball.

7. The eartip of claim 1 , in which the length of the tether is at least partially located within the open central passage of the core.

8. The eartip of claim 1 , in which the first end of the tether is passed through a hole in the attachment region of the eartip core.

9. The eartip of claim 8 , in which the first end of the tether comprises a T, such that when the first end of the tether is passed through the hole in the attachment region of the eartip core, the T lodges against a surface of the attachment region of the eartip core, coupling the first end of the tether to the eartip core.

10. The eartip of claim 8 , in which the first end of the tether is formed into a loop, such that the first end of the tether is coupled to the eartip core by passing the first end of the tether from the central passage through the hole in the attachment region of the eartip core and wrapping the loop around the eartip core.

11. The eartip of claim 8 , in which the first end of the tether is coupled to the attachment region of the eartip core by folding the first end of the tether back along an outer surface of the eartip core and securing the first end of the tether to the outer surface of the eartip core.

12. The eartip of claim 8 , in which the first end of the tether is formed into a loop, such that the first end of the tether is secured to the outer surface of the eartip core by passing the first end of the tether through the central passage of the eartip core and inward through the inner end of the eartip core, folding the first end back toward the outer end of the eartip core and wrapping the loop around an outer surface of the eartip core.

13. The eartip of claim 1 , in which the eartip core is glued to the resilient body.

14. The eartip of claim 1 , in which the tether is monofilament line.

15. The eartip of claim 1 , in which the tether has a diameter small enough that it does not block sound passage through the central passage of the eartip core.

16. A method of making an eartip comprising a resilient body having an inner end for insertion into an ear, an outer end, and an open center extending between the inner end and the outer end; an eartip core having an inner end, an outer end, and a length therebetween with an open central passage from the inner end to the outer end; and a tether having a first end, a free end and a length therebetween, the method comprising:

a) threading the first end of the tether through central passage of the eartip core from the outer end to the inner end, leaving the free end of the tether extending from the outer end of the eartip core;

b) securing the first end of the tether to an attachment region of the eartip core;

c) inserting the inner end of the eartip core into the outer end of the open center of the resilient body; and

d) pushing the eartip core into the open center of the resilient body until the eartip core is in a desired location relative to the resilient body.

17. The method of claim 16 , further comprising the step, before step (a) of pre-forming the first end of the tether with a sharp bend, and wherein the step of securing the first end of the tether to an attachment region of the eartip core comprises applying an adhesive to an outer surface of the eartip core and pressing the first end of the tether into the adhesive.

18. The method of claim 16 , in which the first end of the tether is formed into a loop, and wherein the step of securing the first end of the tether to an attachment region of the eartip core comprises placing the loop at the first end of the tether around an outer surface of the eartip core.

19. The method of claim 16 , in which the first end of the tether is formed into a T, and wherein the step of securing the first end of the tether to an attachment region of the eartip core comprises inserting the T through a hole in the eartip core.

20. The method of claim 16 , further comprising:

e) inserting the free end of the tether into a sound channel of an eartip; and

f) attaching the outer end of the eartip core to a nipple of the earpiece, such that at least part of the length of the tether extends through the nipple into the sound channel when the eartip core is attached to the nipple of the earpiece.