The key to your dogs freedom and your sound sleep!
No more getting up in the middle of the night! No more constantly getting up and down throughout the day with smaller bladder breeds! This little key attaches to your dogs collar and uses the Automatic SmartDoor to automatically let your pet in or out without you having to lift a finger. The black key comes with and uses the RFA-67 battery that screws into the collar. The key is lightweight making it perfect from the large to the small. The key is extremely water resistant and equally as durable so even the most active of pets will not damage this little device.

SmartKey Dimensions:

• 1 ¼ inch tall and 1 inch wide.
• Weighs .7 ounces.
• Can be attached to your pets existing collar as long as it is 3/4 inches wide or smaller.