Alytimes Wireless IP Camera, IR Day/Night View, Built-in 128GB SD Card Slot, Motion Alerts, WiFi, Push Message Alert to SmartPhone, Free Apps for iOS iPhone, Android Smart phone, Two Way Audio, 720P HD, Onvif for NVR Megapixel 1080*720 H.264 Intelligent Internet HD Cube IP Camera Built-in Microphone, Speaker of High Quality, NightVision and 3.6mm Wide Angle Lens Storage Support: NVR Storage, Micro SD Storage Onvif 2.4. Good Compatibility with NVR and CMS from Other Company Compatible with b/g/n routers. Requires 2.4GHz band, you must connect your smartphone to the 2.4 Ghz network before syncing to the camera.