Grandstream GXV3611_HD Fixed Dome High Definition IP Camera High quality 2 Megapixels CMOS sensor and lens to ensure razor sharp picture quality Integrated microphone, speaker and smoke detector for maximum and out-of-the-box video + audio + smoke monitoring using industry standard SIP & VoIP technology Motion Detection and Alert Notification Integrated microphone and speaker and SIP/VoIP support for full duplex two-way audio communications as well as video streaming to mobile phones and video phones More information on Grandstream web.