Bellatek 3704AHDS37-10M4BB 4Ch 4Cam 720P 500GB Super 3-in-1 HD Analog Security System, Supports AHD/Analog/IP Camera Video Input 500GB HDD, 1280 x 720, 4 bullet cameras, 4 channels, 1 x 4CH 720p three-in-one super AHD DVR and support 4CH 720p AHD camera input 4 x 720P AHD waterproof indoor outdoor bullet camera, with 20 meters night-vision 1/4" color sensor, 4 x BNC cable and 20meters each 1 x 1-4way power splitter 1x DC 12V power adaptor for cameras DVR can work as 960H/D1 analog DVR, AHD DVR, NVR, hybrid DVR and support 960H analog camera, AHD camera, IP camera input Support mobile app monitoring, motion detection, email alert and push video