This Hikvision EZVIZ CS-X5C-4 is a 4-channel wireless Wi-Fi NVR that can coverage signal for recording up to 300ft / 100m long range and it supports 1TB to 6TB 3.5inch HDD. It comes with a 2-antenna, 50mbps wired access bandwidth, dynamic detection video, and alarm recording. Moreover, it's Max. video recording res. 1920 x 1080p.