You can get hi-vis collars with flashing red LEDs on. My mum used to have one for walking the dog early in the morning in winter. Though she did once meet someone who swore there was a UFO racing around the bottom field :-)
Pete
and make temperatures even more miserable in summer
NT
If the LEDs could be programmed to flash the dog's name in Morse code, that would be useful for multidog households.
Owain
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