High visibility 4mm multi-coloured LED (Red, Orange, Green, Blue, Purple and White) LED colour changed by pushing rubber touch button on rear of alarm (as per RX+) Dual step sensitivity Indexed volume adjustment dial Indexed tone adjustment dial Top quality cone speaker Built in I-Com transmitter technology for use with MX Receiver Rubber ear inlays Tru-run roller wheel Three position toggle switch D-Tech Sensing System Silent start up 1 x power out socket for use with illuminated bite indicators Supplied with hard case Powered by 2 x AAA batteries Presentation sets including MX Receiver also available: 2 rod, 3 rod and 4 rod