FHD resolution, 2.4GHz Wi-Fi and868MHz radio frequency,Night Vision up to 25ft (7.5m),DustproofWeatherproof IP65,Sync Button for EasyConnection to Base Station,Built-inMicrophone and Speaker,2-way Audiowith Noise Cancellation,Replaceable andrechargeable 5500mAh Li-ion batterypack,100% Wire-free, no need powernetwork cable