The ability to play audio through multiple Bluetooth speakers at once on an iPhone running iOS 15 expands audio output capabilities. This functionality allows users to distribute sound across a larger space or create a more immersive listening experience by utilizing two separate speaker units.
This feature enhances the user experience by providing greater flexibility in audio playback. It enables a wider soundstage, beneficial for activities such as parties, presentations, or simply enjoying music throughout a home or office. Prior to its introduction, users were often limited to a single Bluetooth audio output, requiring alternative solutions for multi-speaker setups.