Operating Band FDD LTE: B1/B3/B8 TDDLTE: B38/B39/B40/B41 TDSCDMA: B34/B39 WCDMA: B1/B8 GSM: 900/1800 Speed LTE-FDD：Max 150Mbps(DL) Max 50Mbps(UL) LTE-TDD：Max 130Mbps(DL) Max 35Mbps(UL) DC-HSPA+：Max 42Mbps(DL) Max 5.76Mbps(UL) UMTS：Max 384Kbps(DL) Max 384Kbps(UL) TD-SCDMA: Max 4.2Mbps(DL) Max 2.2Mbps(UL) CDMA: Max 3.1Mbps(DL) Max 1.8Mbps(UL) EDGE: Max 236.8Kbps(DL) Max 236.8Kbps(UL) GPRS: Max 85.6Kbps(DL) Max 85.6Kbps(UL) Model YZ-H520AI20FZG Clarity 1920×1080@25fps Lens Standard 4.7~94mm lens Zoom speed 4s Minimum Focus Distance 100~1000mm (near-focus~tele-focus) Image Sensor 1/2.8' Sony Mega Progressive Scan CMOS Min. illumination (LUX) color：0.05Lux@F1.6 black and white：0.01Lux@F1.6 Compression Format H.265 Automatic tracking Built-in AI algorithm, support for human shape recognition and face detection, lock the target after the algorithm automatically adjusts the PTZ position and lens focal length tracking zoom face. Tracking Mode Support preset point tracking and cruise tracking mode AI Alarm Support humanoid target detection with adjustable target size and sensitivity Alarm linkage When the humanoid target is identified, the tweeter can be triggered to send an alarm tone, trigger alarm video and alarm push information; the triggered alarm tone can be recorded or input text for voice synthesis. PTZ Function horizontal 360 °,0.05°~240°/s vertical -15°~90 °,0.05°~180°/s Electronic fence Each preset point can correspond to a different electronic fence as recognition scene, up to 16 preset points as a group of cruising points for vigilance. Number of preset points 256 Cruise Lines 4 bars (each bar can be set up to 16 preset points, preset point dwell time adjustable) Watchman position Support guard position function, can set 1 guard position IR Using eight 850nm 42um infrared lights, night vision distance up to 200 meters Voice Intercom Optional speaker, support two-way voice intercom, to achieve remote shouting function Antenna built in 2× 4G antennas and 1× wifi antenna AP Hotspot Build its own AP hotspot to share 4G network with other wireless devices. Network Interface 1 RJ45 10/100Mbps network interface for sharing 4G network to other wired devices for Internet access Storage Local storage support, MicroSD card expandable up to 128G; Support cloud storage, need to pay separately to buy cloud storage space. Power Daytime ≤ 10W, night ≤ 20W (wide angle, after the infrared light is turned on)≤ 5W during the day, ≤ 10W at night (after the infrared light is turned on). Power Supply DC12V IP Rating IP66, built-in 4000V lightning, surge and surge protection