Headband for a wearable electronic device

1. A headband for a wearable electronic device, the headband comprising a first end portion, a second end portion, and a central portion disposed between the first and second end portions, the first end portion connected to the central portion by an extension mechanism for adjusting a length of the headband, wherein the first end portion comprises a battery compartment for receiving a battery, and wherein the battery compartment is configured to receive a plurality of batteries such that the plurality of batteries are positioned adjacent to one another with end faces of adjacent batteries at least partially facing one another, and the plurality of batteries are positioned such that an oblique angle is defined between longitudinal axes of adjacent batteries.

2. The headband as claimed in claim 1 , wherein one of the first end portion and the central portion comprises a male connector, and the other of the central portion and the first end portion comprises a female connector for receiving the male connector, the male and female connectors configured to allow relative motion between the first end portion and the central portion, and configured to retain the first end portion and the central portion at a plurality of positions relative to one another.

3. The headband as claimed in claim 1 , wherein the second end portion comprises a further battery compartment for receiving a further battery.

4. The headband as claimed in claim 3 , wherein the further battery compartment is configured to receive a plurality of further batteries such that the plurality of further batteries are positioned adjacent to one another with end faces of adjacent further batteries at least partially facing one another, and the plurality of further batteries are positioned such that an oblique angle is defined between the end faces of adjacent batteries.

5. The headband as claimed in claim 3 , wherein the battery compartment and the further battery compartment are configured to house equal numbers of batteries.

6. The headband as claimed in claim 3 , wherein the second end portion is connected to the central portion by a further extension mechanism for adjusting the length of the headband.

7. The headband as claimed in claim 6 , wherein the extension mechanism and the further extension mechanism are the same type of extension mechanism.

8. A wearable electronic device comprising the headband as claimed in claim 1 .

9. The wearable electronic device as claimed in claim 8 , wherein the first end portion of the headband is connected to a housing within which an electronic component is disposed, the electronic component configured to be powered by a battery received within the battery compartment in use.

10. The wearable electronic device as claimed in claim 9 , wherein the electronic component comprises one or more of a speaker and an airflow generator for generating an airflow.

11. The wearable electronic device as claimed in claim 8 , wherein the second end portion of the headband is connected to a further housing within which a further electronic component is disposed.

12. The wearable electronic device as claimed in claim 11 , wherein the further electronic component is configured to be powered by a battery received within the battery compartment in use.

13. The wearable electronic device as claimed in claim 11 , wherein the further electronic component is configured to be powered by a further battery received within the further battery compartment in use.

14. The wearable electronic device as claimed in claim 11 , wherein the electronic component and the further electronic component are both configured to be powered by the battery received within the battery compartment and by a further battery received within the further battery compartment in use.

15. The wearable electronic device as claimed in claim 11 , wherein the further electronic component comprises one or more of a speaker and an airflow generator for generating an airflow.

16. The wearable electronic device as claimed in claim 8 , wherein the wearable device comprises a nozzle for providing airflow from an airflow generator to a wearer of the wearable electronic device in use.

17. A headband for a wearable electronic device, the headband comprising a first end portion, a second end portion, and a central portion disposed between the first and second end portions, the first end portion connected to the central portion by an extension mechanism for adjusting a length of the headband, wherein the first end portion comprises a battery compartment for receiving a battery;

wherein one of the first end portion and the central portion comprises a male connector, and the other of the central portion and the first end portion comprises a female connector for receiving the male connector, the male and female connectors configured to allow relative motion between the first end portion and the central portion, and configured to retain the first end portion and the central portion at a plurality of positions relative to one another.

18. A headband for a wearable electronic device, the headband comprising a first end portion, a second end portion, and a central portion disposed between the first and second end portions, the first end portion connected to the central portion by an extension mechanism for adjusting a length of the headband, wherein the first end portion comprises a battery compartment for receiving a battery, wherein the second end portion comprises a further battery compartment for receiving a further battery,

wherein the further battery compartment is configured to receive a plurality of further batteries such that the plurality of further batteries are positioned adjacent to one another with end faces of adjacent further batteries at least partially facing one another, and the plurality of further batteries are positioned such that an oblique angle is defined between the end faces of adjacent batteries.