Navigon 72 Easy. Form factor: Fixed. Display diagonal: 127 mm (5 "), Aspect ratio: 16:9. Storage media type: flash, Compatible memory cards: microSD, MMC, Internal RAM: 128 MB. Battery technology: Lithium, Battery capacity: 1100 mAh. Minimum system requirements: Adobe Acrobat Reader 5.0 DVD-ROM USB microSD/MMC card reader