Complex sentence: Sony Bundled the Kinoma Video Player with the device, although out of the box it only had sound out in the form of a Piezo-buzzer, this resulted in very poor sound quality without the optional Stereo Audio Adapter.
Split into simpler sentences: Sony Bundled the Kinoma Video Player with the device, although out of the box it only had sound output in the form of a Piezo-buzzer. This resulted in very poor sound quality without the optional Stereo Audio Adapter.