√ 【10 Channels NVR, Extended Range Coverage】 This is NOT Battery Camera. All cameras need the POWER SUPPLY. The dual Wi-Fi NVR supports 10 cameras and can link to the home/office router wirelessly. Our Dual Mode Camera can Link to the Router directly, by pass the NVR. | √ 【2-Way Audio & 24/7 Recording & Playback & Night Vision】 With the build in high quality microphone and speaker on the security cameras, you can talk and listen from both the phone and the camera clearly. Our advanced noise suppression and compression technology can transmitted the audio and video smooth across the wifi channel. The Wireless IP Cameras can record HD video and audio 24/7 | √ 【Security made Smarter】 "Alexa, show me the front door. " with this security system You can speak to see as it works with Alexa enabled smart devices like your echo Show, echo spot, and 4K Fire TV. Enjoy security in the palm of your hands with live streaming from multiple cameras and multiple sites, playback video, receive push notifications and more on your mobile device via the latest EseeCloud security app. | √ 【PIR Motion Detection & Snapshot Email Alert】 When you set up PIR Detection, the Security Cameras will ONLY send real-time alter notification to your phone when it detects movements from human and animals,instead of wind, swing of branch or passby of cars. In the software detection, the camera will record any movements. | √ 【No Monthly Fee, Reliable Technical Support】 Our wifi security camera system wireless is Auto Pair and easy configuration. You can follow the guide step by step to achieve what you want, no matter you are professional or not. Meanwhile, we offer one year product warranty and life time technical support.