| CPC G06F 1/26 (2013.01) [G06F 1/163 (2013.01); H04R 1/1041 (2013.01); H04R 2460/03 (2013.01)] | 20 Claims |

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1. A system comprising:
a wearable device comprising:
a first housing;
a first earphone unit located within the first housing; and
a plurality of sensors, wherein a first sensor of the plurality of sensors is a force sensor, a second sensor of the plurality of sensors is a proximity sensor, and a third sensor of the plurality of sensors is an inertial measurement unit (IMU) sensor; and
at least one processor and memory configured to;
process data from the plurality of sensors;
in response to processing force data from the force sensor, trigger the proximity sensor and the IMU sensor to awaken; and
(i) detect an active use state of the wearable device in response to the force data satisfying a threshold and data of the proximity sensor indicating the wearable device is in proximity to a head or ears of a user; and
generate a signal to power on the wearable device in response to detecting the active use state of the wearable device; or
(ii) detect an inactive use state in response to at least one of: the force data failing to satisfy the threshold, the proximity sensor data indicating the wearable device is not in proximity to the head or ears of the user, or data of the IMU sensor detecting no motion for a threshold duration; and
generate a signal to power down the wearable device in response to detecting the inactive use state of the wearable device.
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