Unlocked Palm Treo 650 GSM Camera PDA Cell Phone Unlocked for use with your existing GSM 850 MHz, GSM 1800 MHz, GSM 900 MHz or GSM 1900 MHz service provider and SIM card. Fully integrated phone and PDA with digital video and VGA camera capabilities Integrated Bluetooth technology and expansion card slot for SD and MMC-based memory and expansion cards Vibrant 320 x 320 touchscreen display Improved backlit QWERTY keyboard