The Sony Ericsson K800i is a tri band 3G phone. The K800i features a 3.2 megapixel camera and, unlike most camera phones, has a built-in Xenon flash that is usually found on digital cameras. The phone also features an MP3 player, stereo FM radio, Bluetooth stereo and the memory is expanded via Memory Stick Micro. The K800i has 7 hours talk time and 14.5 days standby time.