Built-in battery power, Wi-Fi connection, 100% completely wireless Built-in two 18650 lithium battery packs, default 5200mA, support USB charging PIR is the best inductive, and the left distance is about 7-8M 3MP resolution, 2304 1296P high-definition image 9pcs 850 infrared fill light, clear image at night Built-in MIC and speaker, two-way voice intercom Support one-key wireless code pairing to wireless NVR, wireless touch screen and base station (Gateway Sold separately) IP66, suitable for both indoor and outdoor 120 degree 3.4MM wide-angle lens Bracket optional (with magnet bracket and integrated bracket) Support up to 128GB TF card
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