Wirelessly powered audio devices

A wirelessly powered headphones, the headphones comprising:

• a speaker element comprising a diaphragm and an actuator;
• a device resonator structure adapted to wirelessly receive energy via oscillating magnetic fields, the device resonator configured to reduce the interaction of the magnetic fields with the speaker element;
• and
• a power demand monitor adapted to monitor the power demands of the headphones and the power received via the device resonator structure, the power demand monitor further configured to cause the speaker element to generate an audible signal when the power demands of the headphones exceed the power delivered by the device resonator.

A method for wirelessly powering of an audio device, the method comprising:

• initiating wireless energy transfer from a wireless energy source;
• monitoring, using a power demand monitor, a power demand of the audio device;
• monitoring, using a noise monitor, the noise of an audio signal due to the wireless energy transfer;
• adjusting energy transfer to a minimum level that satisfies the power demand of the audio device;
• and
• filtering a noise component from the audio signal.