The Fox Micron MX 3 Rod Alarm Set is a great set of alarms, ideal for beginners wanting to try out a high-quality range. Designed with dual step sensitivity, an indexed tone and volume adjustment dial and a top-quality cone speaker, the alarm works hard to ensure you won\'t miss a bite.High visibility 4mm multi-coloured LEDDual step sensitivityIndexed volume adjustment dialIndexed tone adjustment dialTop quality cone speakerBuilt in I-Com transmitter technologyUse with MX ReceiverRubber ear inlaysTru-run roller wheelThree position toggle-switchD-Tech sensing systemSilent start up1 power out socketFor use with illuminated bite indicatorsSupplied with hard casePowered by 2 x AAA batteriesLED colours: Red, Orange, Green, Blue, Purple and White