The Micron M+ benefits from a whole host of new features. Immediately you’ll notice its classic Fox Micron look, with a raised 5mm red LED. It’s powered by 2 x AAA batteries, which coupled with new internal circuitry, offers an extra long battery life. This has to be one of the best alarms for the money ever! Red 5mm LED Indexed pot volume adjustment knob 2 x outputs: 1 x power out, 1 x transmitter out Piezo speaker for clear sound FREE hardcase Code: FC-MICRON-M+