Night Owl 2-Way Audio 20 Channel 4K Security DVR with 2TB Hard Drive

• Amazon now offers the Night Owl 20-Channel 4K Audio Surveillance DVR with 2TB Hard Drive, now $359.99 (was $399.99).
• Prime members get free two-day shipping, and regular members get free shipping on orders over $35 within the contiguous U.S.
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Editor's Pick: If you have an old DVR system at home, no need to rewire—just swap out the main unit and cameras. It features two-way audio, so you can talk to someone at the door directly through the app. Footage is stored locally on the hard drive, with no cloud dependency or network access for others. Supports up to 20 cameras, enough to cover an entire house.