I feel cheated. I sent the product back at my own expense. The seller confirms receipt of the package. All the time I did not get the refund for the purchase of cameras
Be aware that DVR that originaly come with those camera can only record what they call 5MP Lite, and it is actually recording half horizontal lines 1,280x1944 i.e 2,5MP. Check Amazon feedback for more info. I bought it with DVR DT81DP it record real 5MP + 4 IP camera. Video quality from KCR1BN0402 is excellent. DVR DT81DP also can control my 4MP PTZ Reolink camera. There are recording settings per camera. However there are some limitations for IP ONVIF cameras. Recorded files are Video: HEVC 2560x1944 24fps [V: hevc main, yuv420p, 2560x1944