Two-way wireless communication Contains batteriesHigh quality colour camera with white LED for low light 15m Pyro (PIR) Detection Close-in Detection Compatible with HKC's Pet Lens Adjustable Pyro sensitivity Noise immunity Temperature compensation Resin protected electronics Batteries: Two CR123A 3V Lithium PIR Quiescent Current: 8μA PIR Transmit Current: 55mA Camera Quiescent Current: 5μA Camera Active Current: 500mA Temperature: -10 to +40°C Weight: 210g Size: 136mm x 64mm x 53mm PD6662 & EN 50131-2-4 EN Grade 2 Environmental Class II