The Mini Micron X 3-Rod Set from FOX is a modern upgrade of the old school Mini Micron alarm with many new features including receiver technology. Volume adjustment with 7 levels, Tone adjustment with 4 positions, Sensitivity adjustment with 4 positions, Backward differentiation, Compatible with the Mini Micron X Receiver, 2 Ø5mm High-vis Multi Color LEDs: green, blue, red and orange, Color is selected by holding down the volume down button and using the sensitivity button to make the selection, Adjustable LED brightness, LEDs are set by holding down the volume down button and using the pitch button to make the choice, D-Tec Sensing System / Roller wheel technology for accurate and consistent bite indication, Power out socket 2.5mm for use Illuminated bite indicators such as the Fox Illuminated Swinger®, Low battery warning, Battery voltage too low when LEDs start flashing every 2 seconds, Cone speaker for bright sound, Rubber inlays to protect the blank and keep the rod in place with hard bites, On / off toggle switch r, Profiled collar for securing, Operates on small N-type / LR1 batteries, Metal (alloy) 3/8 BSF thread, Top tip: use the bite alarm in combination with a Bobbin, Hanger or Swinger® for the best bite indication, Available separately and in 2-, 3-, and 4-rod sets with receiver.