The KarpX Alarm is a water-resistant alarm designed for durability and runs on a single 9V battery. This alarm features adjustable volume, tone and LED with sensitivity control and latching time. It has detachable snag ears and a memory function that keeps your settings intact.Adjustable volumeAdjustable toneSensitivity controlAdjustable LEDLatching timeDetachable snag earsMemory functionWater resistantRequires 1 x 9V battery