The item in the image is an NVK Dog Training Collar, Model TC-16, which includes two receivers and a remote. It is designed to help train dogs using various stimulation methods. Helpful information about the NVK Dog Training Collar: Components: The package includes a remote control and two collar receivers. Training Modes: It typically offers beep, vibration, and shock modes. Range: The remote control can operate up to 1600 feet. Safety Lock: The remote has a safety lock to prevent accidental operation. Water Resistance: The collar is designed to be water-resistant, but it shouldn't be submerged for extended periods. Rechargeable: Both the remote and the collar receivers are rechargeable. Usage: It is designed to improve dog behavior at home and in public, and it is suitable for first-time pet owners and professional trainers. Proper Fit: The collar should fit snugly for proper function, but it shouldn't be worn constantly to avoid irritation. Humane Use: When used correctly, e-collars can be a humane training tool, primarily to reinforce known commands.