Abstract: A device or a method using the device includes a balloon configured to seal a user's orifice, where the balloon is configured to produce an acoustic seal between a first side and a second side of the balloon in an ear canal. At least a second side of the balloon is fitted into the ear canal. Audio processing circuitry produces an audio signal for driving a speaker in the device and to measure sound level using output from the microphone in the device while the speaker is being driven by the audio signal. The device or method further includes control circuitry to evaluate a seal quality of the device. Other embodiments are disclosed.

Abstract: A system for delivery of personalized audio services including a first microphone for capturing audio, a voice controlled interface coupled to the first microphone for detecting a voice command, a communication module for accessing information from a network in response to the detected voice command to provide results from accessing the network, a memory for storing a user profile and a user listening history, and a processor for modifying the results based on the detected voice command, the user profile and the user listening history. Other embodiments are disclosed.