-The Sony Ericsson P900 is a triple band mobile phone, an MP3 audio and MPEG4 video player, an advanced handheld device and a mobile video and digital camera. Wherever you are, you have phone and e-mail access to your network of contacts. Your calendar is updated. And you have every mobile messaging possibility available. Send pictures taken with the P900 built-in camera in seconds. Record a short video clip and e-mail it straight away.