❣️ Instant purchase welcome! ❣️ ✨️ Beautiful, Unused Item ✨️ Although it has been stored carefully, please understand that it has been in someone's possession once before purchasing. This was a gift, and it is unused. I do not know the details of the product, but please be aware of this. If you comment before purchasing, I will answer to the best of my ability. I apologize if I don't know the answer... It has been opened once for photography! I have included images as reference, but please note that the actual photos are all that is included. Features: Compatible with CVI1080P, TVI1080P, AHD720P, and AHD1080P. Not suitable for CVI720P. Has a mini cable of 18cm on both sides from BNC male to BNC female. Prevents distortion of video signals caused by video ground loops. Prevents the laying of other power cables from interfering with the CCTV system. Built-in video filter, when used with a DVR, eliminates interference, thereby obtaining extra anti-interference capability. Product Information Brand: UHPPOTE Product Model Number: HD-GB001 Batteries Included: No Product Size: 5.21 x 6.2 x 2.21 cm UHPPOTE CVI/TVI/AHD BNC Male to Female Passive Coaxial Video Balun Ground Loop Isolator 348