Many models include Active Noise Cancellation (ANC) and a Transparency mode to let ambient sound in. A subset explicitly advertise adaptive or dynamically adjusting ANC that changes with the environment.
Many include touch or press controls (force sensors) for playback and calls, built-in microphones, and quick access to voice assistants. Some models allow customizing press-and-hold or other controls via a companion app or require specific OS versions to enable those options.
Typical inclusions are a pocket-sized charging case, multiple eartip sizes (three or four), a charging cable, a Quick Start guide or documentation, and a warranty card. Power adapters or certain cables may be sold separately.
