1. power suuply: DC 12v/ 1A 2. screen: 4" B/ W or 3.5" color LED 3. effective resolution: 640* 380 4. external dimension: monitor: 215* 185* 42mm camera: 125* 95* 35 mm OR 175* 70* 50mm 5. installation: surface-mount 6. connection: 5 wires