• This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories,and may arrive in a generic box. Only select sellers who maintain a high-performance bar may offer Certified Refurbished products on Amazon.com.
• HYBRID Capability 4-in-1 DVR - With self-adaptive technology, it supports 4 kinds of camera models - Analog,720P/1080P AHD,720P/1080P TVI and CVI.
• QR code scan via mobile device using our free ZOSI View app (available on iOS, Android). Live view and playback on your smartphone via 3G, 4G, WIFI.
• Intelligent motion detection email alert with images; Motion detection recording allows you save more capacity hard drive (Needs an internal hard disk,20g, day, CH for 720P, it can't record or playback without hard drive).