4PCS Wireless NVR Video Security Camera System Outdoor WIFI CCTV IR With 1TB HDD. Easy Installation: Plug and play. XMeye App on cellphone View. Operating system: Embedded linux OS. Interface: 1/4 adaptable RJ45 10M/100M, 2 WIFI interface. USB Interface: 1/2 USB 2.0. Video Input: 4CH WIFI or RJ45. Video Output: HDMI / VGA / WIFI / RJ45. Video HD Output: HDMI (19201080)/2048. Video Resolution: 4CH 3MP. Backup: Hard disk / USB HDD / Network. Video Playback: 4 Channel Simultaneous Playback. Interface: RJ-45 10M/100M; WIFI, USB, DC 5.5mm. Network Service support: TCP/IP, UDP, HTTP, DDNS, SMTP, LAN, DHCP, PPPoE. Wireless standard support: IEEE802.11b, 802.11g, 802.11n Draft. AC Power Supply: 100V240V; 47Hz~63Hz. Work power: DC 12V 2A. Working temperature: -10 55°C. Image Sensor Type: CMOS. Image Sensor Size: 1/4 Inch. Sensor Horizontal Resolution: 3MP(20481536pixs). Video Output: 1.0Vp-p/75O BNC. S/N Ratio : > 58dB. Shutter Speed: Electronic shutter 1/60-1/100000 Sec. IR Irradiation Distance: 10m20m. Minimum Illumination: 0.1LUX/F1.2. Interface: WIFI, RJ45, DC5.5mm. Power Supply: DC 12V 1A. 4 WIFI IP Camera. 1 1TB Hard Drive. 4 DC 12V1A power supply(for IPC). 4 Screw bag(for IPC). 4 Antenna(for IP Camera). 1 1 meter network cable (for IPC code match). 1 DC 12V2A power supply(for NVR). By use wireless, we meant it works by wifi, no need internet cable. But each camera indeed need a power plug to get electricity. We can’t accept return as for the reason of not wireless. Like I shown in pictures, they need power supply!! We are factory and accept customized orders. We cannot be held responsible if you fail to read the description. We will be more than happy to answer any questions promptly. For items over 1 year, repair charge is required. All products are checked and packed in good condition before dispatch. Guangzhou Anspo Security Technology Co. Has been established for 15 years and we developed a series of ANSPO high standard and high quality CCTV equipments such as HD IP Camera, AHD, TVI, CVI, 4 in 1, Fisheye, PTZ Cameras and DVR, NVR, XVR etc. Anspo insist on the belief to creat safe and harmonious society The company gathers many high-tech and experienced talents in CCTV area. Anspo has been always held the principle that the integrity and quality are thepriority. Anspo sales amount is getting sharp increase every year. The products are wellrecognized in China and verseas market. Anspo welcome more business relationship with all customers worldwide. We guarantee that all items are as stated in the description. Our products come directly from our factory. There is no middle man, no high markup. So we provide quality items yet competitive price. Normally we respond within 24 hours.