Palm 1057FR. Display resolution: 320 x 320 pixels, Display number of colours: 0.065000 M. Compatible memory cards: microSD, Internal memory: 64 MB. Data network: GPRS, EDGE, Bluetooth version: 1.2. Mobile operating system installed: Palm OS. Battery technology: Lithium-Ion (Li-Ion), Battery capacity: 1150 mAh, Talk time (GSM): 4 h