Note: This kit is shipped with not include hard disk・ so you may need buy and install it yourself・<br />and it has SATA3.0 cable inside・ so you can easily connect and install the hard disk.<br />Hard Disk Requirement: 3.5inch SATA port・ 500G-3TB capacity.<br /><br />Features:<br />*Consist of 4 channel HD 720P WiFi network video recorder + 4pcs megapixels<br />infrared waterproof WiFi cameras for CCTV security surveillance system.<br />*Support both wireless WiFi and wired cable connection.<br />*More stable transmission effect with enhanced dual WiFi antennas.<br />*Support android/iOS phone or pad APP control (EseeCloud).<br />*Support motion detection record and email alarm notification.<br /><br />NVR Specifications:<br />Processor: Hi3520D chip<br />Operating System: LINUX OS<br />Menu Display: 1/4 screen<br />Record Resolution: 1280*720<br />Record Mode: Manual/Scheduled/Motion<br />Compression Format: H.264<br />Sync-playback: 4 channel<br />OSD Language: English・ German・ French・ Spanish・ Portuguese・<br />Italian・ Russian・ Japanese・ Korean・ Chinese・ etc<br />NVR Resolution: 1024*768・ 1280*1024・ 1440*900・ 1080P<br />HDD Support: 3.5inch SATA port・ 500G-3TB capacity<br />WiFi Protocol: 802.11b/g/n・ dual WiFi antennas<br />Connection Distance: 100m (open)・ 20m (obstacled)<br />APP Name: EseeCloud (can download on APP store)<br />APP OS: support Android/iOS phone or pad<br />PC CMS: support windows xp・ win7・ win8・ win10 OS<br />Browser: support