Troubleshooting:
1. Not included HDD in the box so it recommded that you can buy 3.5inches 1sata 320GB-4TB, Western Digital, Seagate HDD.
2. Please noted this is not Wireless system, you still have to use cables to connect dvr and cameras to view.

ZOSI 8CH 1080P HD DVR w/ 8x 1920TVL 1080P Weatherproof Cameras NO Hard Drive
Remote Access in Seconds with QR Code Scan
Connect your smartphone or tablet to your system with a quick scan of the QR Code, remote access has never been so easy.
Save Space, Save Money, Record Longer
Motion Detection Recording allows record only when motion is detected to save hard disk space

Free Advanced ZOSIVIEW Apps
* Live View & Playback on your Smartphone
* One button record and capture the wonderful moments
* Mobile push alerts when motion detection

8 channel 1080p DVR Specification
Video compression: H.264
Encode capacity: 8*1080P@15FPS
Video input/ output: 8CH BNC/ 1CH VGA, 1CH HDMI
Audio input/ output: 4CH RCA/ 1CH RCA
Recording & Playback & Backup resolution: 1080p
USB: 3* USB 2.0
HDD: 1*SATA port (support up to 4TB)

1080p Bullet Camera Specification
Image Sensor: 1/2.7″ Aptina CMOS with ICR,1080p
Effective Pixel:1920×1080
Lens: Megapixel 3.6mm
Number of IR LEDs:42 pcs, 5mm LEDs
Night Vision:120ft(40m)
Material: Aluminum casing.

1080p Dome Camera Specification
Image Sensor:1/2.7″ Aptina CMOS with ICR,1080p
Effective Pixel:1920×1080
Lens: Megapixel 3.6mm
Number of IR LEDs:24 pcs, 5mm LEDs
Night Vision: 65ft(20m)

Package Contents
1 x H.264 8CH 1080P HD-TVI DVR
4 x 1920TVL Bullet Cameras
4 x 1920TVL Dome Cameras
8 x 60FT CCTV cable for camera
3 x 12V/2A power supply
2 x 1 to 4 power splitter cable
No include IR REMOTE CONTROL