Specifications : Operating System and Software Operating System Palm OS 5.4 Operating System Version 5.4 Operating System Palm OS Included Software Camera, Media, RealPlayer for Palm, DataViz Documents To Go 7, Palm VersaMail, Messaging, Calculator, HotSync Manager, Calendar, Contacts, Tasks, AudiblePlayer, World clock, Memos, Astraware Zap!2016 , Phone Display Display Type TFT active matrix Display Resolution 320 x 320 Color Screen Yes Color Depth 16-bit (64K colors) Memory and Proccessor Installed ROM 23 MB Processor Class XScale PXA270 Processor Speed 312 MHz Communications Slot Types Provided SD Memory Card Wireless Connectivity IrDA, Bluetooth Interface Provided 1 x headset - sub-mini phone stereo 2.5 mm, 1 x USB - 4 pin USB Type A Cell Phone Features Cell Phone Yes Cell Phone Band GSM 850/900/1800/1900 Service Provider Sprint Messaging Features SMS Talk Time 360 Min Standby Time 300 Hours Minimum Requirements System Type PC, Mac Required OS Microsoft Windows 2000 / XP, Apple MacOS X 10.2 - 10.3 Power Average Battery Life 6 Hours Battery Technology Lithium ion General Product Info Included Devices Hands-free headset Input Method Keyboard, Touch-screen, 5-way navigation button, Stylus Also known as PalmOne Treo, PalmOne 650, PalmOne Treo 650, Palm Treo 650, Handspring Treo 650, Handspring Treo Manufacturer Part No. POTR650HK Model Treo 650 UPC 805931013514 Dimension 4.4 in x 2.3 in x 0.9 in (HxWxD)