Intermec CN4. Display diagonal: 88.9 mm (3.5 "), Display resolution: 240 x 320 pixels, Display: TFT. Internal memory: 128 MB, Compatible memory cards: miniSD, Internal ROM: 256 MB. Processor clock speed: 520 MHz, Processor family: Marvell PXA, Built-in processor: PXA270M. Networking features: WLAN, WPAN, WWAN, GSM bands supported: 900, 1800, 850, 1900 MHz. Wireless LAN type: 802.11b/g, Security algorithms supported: 64-bit WEP, 128-bit WEP, WPA-AES, WPA-TKIP