Electronic Watch Dog plays a recording of a vicious German sheperd dog to anyone who approaches your home. It emits microwave signals so it can see through walls and detect someone approaching from up to 21 feet away.  This alarm is very effective for home, office, factory or any place that needs the constant security of a guard dog. Please note that it will work on almost any type of wall (wood, cement, brick, stucco, etc.) but will not work on metal walls or walls with metal studs. 

Features & Benefits:

• Dimensions: 7" x 6" x 4"
• Wireless remote control 
• Powered with a 12 volt wall adapter (included)
• Adjustable volume and detection range (up to 21 feet)
• 8 AA batteries (not included) for backup or for areas without a plug
• Unit can be set to chime or alarm instead of the dog bark