Audio and Connectivity:
For audio, the U7310 includes a loudspeaker but lacks a 3.5mm headphone jack, which would have necessitated the use of Bluetooth headsets or adapters for wired audio. Bluetooth version 1.2 supports wireless audio streaming, but it’s limited by the standards of the time. The presence of an FM radio is a nod to the device’s role as a multimedia player. However, the phone lacks Wi-Fi capability and GPS positioning, underscoring its focus on basic mobile functions and connectivity through cellular networks and Bluetooth.