The features of this type of phone contains: 2 Built-in cameras , VGA camera on front Integrated flash , MPEG4 video ,MP3/AAC player ,HTML browser ,Calculator , Calendar ,Voice command , USB port ,Voice recorder ,Bluetooth ,and so on. The Nokia 6680 on 3 is designed around an internal triple band antenna which allows it to be used in over 130 countries worldwide, including Europe, the USA and Canada on 900, 1800 and 1900MHz frequencies. As well as that it can seamlessly access available 3G networks. It is the first ever Nokia 3G handset to have two built in cameras, which enables video calling - this is the 3G Nokia phone that everyone has been waiting for. A stunning 1.3 megapixel camera and a 262k colour display makes this a quality imaging phone, which can also be used for regular video calling thanks to its front facing camera. It has been designed to support new advanced functionalities such as stereo audio, fast data connectivity and digital accessory identification. Pop-Port will radically expand the choice of ground-breaking and interesting accessories for the 3 Nokia 6680. It allows the largest 10 min video clips and supports MP3/AAC audio file formats. If you want to play other formats files ,you just need to download a video/audio converter software. I recommend ImTOO 3GP Video Converter ,which supports so comprehensive video and audio files including AVI, MPEG, 3GP, GIF, WMV, H.264, WMA, WAV, MP3, MP4, M4A, OGG, AAC etc,or you can also use 5Star Mobile video,which works well ,too. Thanks to Java technology, you can further enhance your phone with interactive, vibrant games, which can be downloaded and stored in the handset. They are easy to delete, so you don't have to worry about cluttering up your memory. Almost everyone has downloaded screen savers and ring tones to their mobile phone at some time, and now with this added Java technology, this should proved hours of fun and entertainment for everyone The 3 Nokia 6680 supports Bluetooth wireless connectivity which allows the phone to communicate with other Bluetooth devices such as headsets, digital cameras and laptops without any wires and up to 10m away. Incorporating the latest advanced browser technology for HTML and WAP you can access internet content from your favourite websites or network WAP portal .