Lightning Detector, Ranges 0 to 6 Miles, 12 to 24 Miles and 24 to 40 Miles., 6 to12 Miles, Audible, Visual and Vibration Alarms, Height 3 1/4 in, Width 2 1/8 in, Depth 1 in, Weight 6 oz, Power Source (2) AAA Batteries, Includes (2) Batteries, Carabineer