Remote control device

1. A remote control device comprising:

a control unit; and

a holder including a cavity, the control unit is configured for insertion into the cavity of the holder;

wherein the control unit and the cavity formed in the holder have complementary shapes, the control unit includes control unit retention features and a side wall of the cavity formed in the holder includes corresponding holder retention features, each of the control unit retention features being contoured to engage with one of the holder retention features to prevent relative rotation of the control unit and the holder when the control unit is seated within the cavity of the holder and the corresponding control unit and holder retention features are engaged with each other; and

wherein the holder has an asymmetrical ergonomically exterior shape arranged and configured to facilitate single-handed use of the remote control device.

2. The remote control device of claim 1 , wherein the control unit retention features include one of a plurality of ribs or a plurality of grooves formed in a side wall of the control unit, and wherein the plurality of ribs or grooves extend lengthwise along a longitudinal axis of the control unit.

3. The remote control device of claim 2 , wherein the holder retention features includes the other one of the plurality of ribs or the plurality of grooves, and extend lengthwise along a longitudinal axis of the cavity.

4. The remote control device of claim 3 , wherein the plurality of ribs have a narrower width than the plurality of grooves.

5. The remote control device of claim 1 , wherein:

the control unit has an exterior side wall; and

the cavity has an interior side wall, the exterior side wall of the control unit and the interior side wall of the cavity have complementary circular shapes to enable relative rotation between the control unit and the cavity formed in the holder prior to engagement of the corresponding control unit and holder retention features.

6. The remote control device of claim 1 , wherein the control unit has a first exterior shape different from the asymmetrical exterior shape of the holder.

7. The remote control device of claim 6 , wherein the asymmetrical exterior shape of the holder is non-circular.

8. The remote control device of claim 6 , wherein the asymmetrical exterior shape of the holder is a triangular shape with rounded edges.

9. The remote control device of claim 8 , wherein the triangularly-shaped holder is arranged and configured to fit in a palm of a user's hand for either right-handed or left-handed use.

10. The remote control device of claim 1 , wherein the control unit includes a front surface and a rear surface, the front surface including a rim and a continuously curved portion extending rearwardly from said rim.

11. The remote control device of claim 10 , wherein the rear surface includes a continuously curved portion.

12. The remote control device of claim 1 , wherein the holder includes an inner wall extending across the cavity to define a closed bottom end of the cavity.

13. A method of assembling a remote control device including a control unit and a holder including a cavity, the method comprising:

aligning the control unit with the cavity formed in the holder so that the control unit is orientated in a desired position relative to the cavity formed in the holder; and

inserting the control unit into the cavity formed in the holder to engage control unit retention features with holder retention features to retain the control unit within the cavity of the holder;

wherein engagement of the control unit retention features with the holder retention features prevent relative rotation of the control unit with respect to the holder; and

wherein the holder has an asymmetrical exterior shape.

14. The method of claim 13 , wherein the control unit retention features include one of a plurality of ribs or a plurality of grooves formed in a side wall of the control unit, and the holder retention features include the other one of the plurality of ribs or the plurality of grooves formed in the cavity of the holder.

15. The method of claim 13 , wherein the control unit and the cavity formed in the holder have complementary circular or cylindrical shapes.

16. The method of claim 13 , wherein the control unit includes a first exterior shape different from the asymmetrical exterior shape of the holder.

17. The method of claim 16 , wherein the second exterior shape of the holder is a triangular shape with rounded edges.

18. The method of claim 16 , wherein the asymmetrical exterior shape of the holder is ergonomically shaped to facilitate single-handed use of the remote control device.