Audio and Multimedia
Audio on the D840 is delivered through a loudspeaker, and it supports a range of downloadable polyphonic and MP3 ringtones. However, it lacks a 3.5mm headphone jack, meaning users faced limitations in terms of personal audio listening options, relying instead on Bluetooth connectivity for wireless audio. The phone includes a multimedia player supporting formats like MP3, AAC, ACC+, and WMA, emphasizing the growing trend of music playback on mobile devices prior to the smartphone age.