T-Mobile Dash Phone (T-Mobile) Microsoft Windows Mobile 5.0 operating system Bluetooth and Wi-Fi technology built-in for a wire free experience Microsoft Office Outlook Mobile (e-mail, calendar, contacts, tasks, notes) & Windows Media Player Mobile (music and video files) 1.3 megapixel camera, Video camera and Windows Media Player Includes: Battery, AC Adapter, Hands-free Headset, USB Cable, and Case