A collar for a dog or similar animal has electrical contacts 16, 17 on the outer surface edge and complete length of the collar to stop aggressive dogs assaulting the animal wearing the collar. The collar can preferably be activated remotely by means of a remote control device (1, fig 4) that may have a safety feature preventing unauthorised use. The collar may incorporate a camera 9 with a proximity sensor. The collar may incorporate a timer within the protective casing, which may deactivate the collar. The collar may have a night light 5 that is preferably remotely activated. The collar may also incorporate an LED display 20, and a USB port 7. The collar may have a standby mode indicated by two pulsating LEDs 5, 8, the device preferably having noise activation means to leave standby mode. Preferably the onboard camera may be activated by an app installed on a mobile device. Sensors may be used to monitor the animal’s body functions such as heart rate, calorie burn, step count, sleeping behaviours and body temperature.
