1. Easy Wireless Installation(2.4GHz) 2. Body material: ABS Casing 3. 2.4 TFT LCD, 320 x 240 4. Real-time Monitoring 5. One-key Unlock 6. 100 snapshot records 7. Rechargeable Lithium Battery (1100mAh) 8. Working temperature: -20°C - +55°C 9. Support two doorbell cameras 10. Installation: Desktop