Sony Portable Navigation System. Map storage: Internal storage, Map view options: 3D. Display resolution: 320 x 240 pixels, Display: LCD, Display size (HxV): 88.9 mm (3.5 "). Weight: 280 g, Width: 103.8 mm, Depth: 32.8 mm. Battery technology: Lithium-Ion (Li-Ion), Battery life (max): 6 h, Battery capacity: 2200 mAh. GPS receiver: SiRFstar III, Internal memory: 2048 MB