3 UNIT CCTV & 3 MEMORI Self-adaptive shutter Lens Mount M12 Day & Night IR-cut filter with auto-switching 3D DNR Digital WDR Smart Alarm: Motion Detection, Human Shape Detection, Loud Noise Detection, Patrol Mode Detection Video/Audio Bit Rate Adaptive bit rate Wi-Fi Pairing: AP pairing EZVIZ cloud proprietary protocol Micro SD card slot (Max. 512G) Max. Bitrate 4Mbps Frequency Range 2.4GHz: 2.4 GHz ~ 2.4835 GHz | 5GHz: 5.15GHz~5.25GHz Channel Bandwidth 2.4GHz Supports 20MHz | 5GHz Supports 80MHz Transmission Rate: 2.4GHz Max. Rate Support: 11b_11M，11g_54M， 11n_MCS7_20M，11ax_MCS11_20M | 5.15-5.25GHz Max. Rate Support: 11a_54M，11n_MCS7_20-40M，11ac_MCS9_20-40-80M，11ax_MCS11_20-40-80M Output Power(EIRP) 20 dBm Antenna Gain 2.56dBi@2.48GHz，3.18dBi@5.22GHz IR Range MAX. 10 meters (32.81ft) Power Supply DC 5V / 2A