Note: This DVR is recommended to be used in conjunction with ZOSI cameras for an enhanced user experience. This DVR supports audio recording when it works with ZOSI audio-over-coax cameras: 1AC-3032F/1AC-2612F. 1TB security-certified hard drive was pre-installed inside the DVR. This is a hard-wired security DVR. It could not connect to any wireless cameras. With or Without the Internet. Standalone DVR systems do not need the Internet to operate. However, an internet connection will be necessary if you want to remote view and receive motion alerts. 1080p(19201080) Resolution with 2MP(1080P) camera. 720P(1280720) Resolution with 1MP(720P)camera. 960H(700TVL/800TVL/900TVL/1000TVL) Resolution with normal analog camera. 1080p(19201080) Resolution with 5MP(12.5fps) camera. This 5MP lite DVR only can work with 12.5fps 5MP camera, if you want to connect 5MP camera with this DVR, please make sure it is 12.5fps. Expandable 4 in 1 DVR. This upgraded 8-channel 4-in-1 DVR which supports up to 8pcs HD-TVI/CVI/AHD security cameras. It provides you the flexibility to extend additional cameras. You can add 8 different additional cameras to this system. ZOSI’s bullet camera and dome camera are all compatible with this system, so you could add different cameras to complete your business security solution. For 24/7 continuous recording. You can select the specific period of time you need for recording. DVR will only record when motion is detected, enabling longer recording. It will overwrite the oldest video files on the hard drive when recording. Better Quality and Reduced Bandwidth. 265+ delivers remarkable bit rate reduction – up to 50% compared with H. A lower bit rate not only allows faster downloads but also reduce expenses for delivering the same content using fewer resources and lower data consumption. 265+ technology significantly saves storage while delivering sharper and smoother video streaming. Get Remote Access from Anywhere. It’s always good to keep informed of your home or business when you are far away. ZOSI free Smart App/AVSS Client makes it easy for you to get access and control to your cameras via your smartphones or PC anytime. Quickly view a live feed, playback the recorded footage, customize your monitoring settings and check on everything you hold dear even from miles away.