1. 400m transmission distance in open area 2. Easy Wireless Installation(2.4GHz) 3. H.264 video and G.711 audio codec 4. Camera: 0.3 Mega pixels, automatic lighting, 105°(H) 5. IP65 Waterproof 6 . Tamper Alarm 7. Dual power options: Battery or DC 12V 8. Working temperature: -20°C - +55°C 9. Support two indoor monitors