Connectivity
In terms of connectivity, the K790 includes Bluetooth 2.0 with A2DP for wireless audio, an infrared port, and USB 2.0 for data transfer, but lacks both WLAN (Wi-Fi) and GPS capabilities, which are common in more modern phones. It does have a stereo FM radio with RDS, which was an appreciated feature for radio listeners during its era. However, there is no 3.5mm headphone jack, which could limit the use of standard headphones without an adapter.