Systems and methods for switching a computing device from a low-power state to a high-power state are provided. In some aspects, a method, implemented on a power management processing unit of the computing device, includes receiving, while the computing device is in the low-power state, a first audio signal. The method also includes verifying the first audio signal based on an audio signal key. The method also includes providing, in response to verifying the first audio signal, instructions for switching the computing device from the low-power state to the high-power state.