Siemens SX66 is a slide form factor mobile phone capable to work in the ranges GSM 850/900/1800/1900. Possessing QWERTY keypad the cell phone has also TFT touchscreen display with the resolution of 240x320 pixels. Besides it supports practically all modern capabilities: slot for memory cards of the format SD/MMC, Wi-Fi 802.11b, Handsfree and MP3/AAC/MPEG4 player.