Sony Ericsson product, Fast port system connector, USB connection, Colour : Black, Transfer music files and ring tones to your phone, Synchronise your computer's address book with your phone's, Download software from the internet. Compatible with: Sony Ericsson: K300i, K600i, K608i, K700i, P800, P900, P910i, S700i, T20, T200, T230, T28, T310, T600, T610, T630, T65, T68, T68i, V600i, Z1010, Z500, Z600.