US Patent 10568035 Tracking device audio circuit

A tracking device may produce audio signals for a variety of reasons. However, tracking devices typically have a limited power supply and contain additional components that require power, such that directing too much power to produce an audio signal may interfere with the functionality of other components. A tracking device determines an amount of power available to produce an audio signal based on a first amount of power available from a battery or power source and a second amount of power required by other components of the tracking device.