Review on USB Rechargeable LED Dog Collar For Night Safety - Joytale Light Up Collar In Blue - Glows In The Dark, Ideal For Small, Medium, And Large Dogs by Bobby Lawson

Perfect for walking and for yard play. Our dogs are Black and dark brown so they basically dissappear at night. These make it easy to keep track of them when they run in the yard and is great for when we are on walks so others can see them, even if it looks like floating collars. Cuts down to our 20lb dog and 40lb dog with plenty of room for any size dog.Battery charge has lasted 3+ hrs out of package on full glow, no blink and hasn't faded yet.