Navitech QX-B431. Form factor: Handheld/Fixed. Display diagonal: 109.2 mm (4.3 "), Display: LCD, Placement supported: Horizontal. Storage media type: Flash, Internal storage capacity: 2 GB, Compatible memory cards: MMC, SD. Processor clock speed: 533 MHz, Built-in processor: SiRFatlasV. Supported radio bands: FM