For sale, used surveillance cameras consisting of a Hikvision 16-channel DVR, large size, can fit 2 hard drives, and an alarm system with sound recording. Includes 4 cameras and one hard drive with 2 terabytes of storage. Working and in excellent condition, available for testing. For those interested in buying, please call the mobile number: 0 6 2 4 9 7 3 6 5 0