1. Power supply voltage: 90-240v / 50-60hz. 2. Projection ratio: 16:9/4:3. 3. System configuration: 1Gb RAM, 8Gb eMMC storage. 4. Safety regulations: support the us and Europe, British regulations and national standards. 5. Same screen technology: supports iPhone and Android. 6. The projection ratio is 1.6 and the maximum distance is 5m. 7. Accessories: power cord *1, remote controller *1, instruction manual *1,VGA cable *1,HD cable *1, lens cover *1.