Real-time transmission up to 30fps; Interchangeable lenses available; Support optional: two-way audio supported; Hardware motion detection supported; DC 12V or power over Ethernet (support optional: IEEE 802.3af); Onvif2.1 compliant support for multiple NVR; Support optional: 1 USB port (optional Wi-Fi /3G); Support English / Russian / Portuguese / German / Simplified Chinese / Traditional Chinese; Compatible with main brand NVRs: AXIS SONY Panasonic SANYO BOSCH SAMSUNG Honeywell VIVOTEK Ambarella HIKVISION DAHUA Histream Grandstream TOPSEE Launch WISION HYVISION WAPA etc.