Specifications include, but are not limited to: trail mounted, solar powered, full matrix, trailer-mounted portable changeable message sign changeable message sign.; The trailer mounted solar powered, changeable message sign, current model, new equipment, shall incorporate light emitting diode (LED) technology to provide for energy efficiency, low maintenance and durability during operation.; The unit shall include INDOT's approved cellular modem: Cradlepoint COR Series Router Model #IBR900; The unit shall include modem antenna AG60 Series (2 X CELLULAR 3G/4G/LTE/GPS/ 2 X WiFi 2.4GHZ FOR CRADLEPOINT IBR900); Trailer shall have a minimum axle rating of 3,500 lbs. and shall have minimum of electric brakes.; The trailer shall be equipped with a tongue wheel jack for easy and safe transportation.; The trailer's frame shall be equipped with a powder coat finish to protect against humidity, salt spray, and rust resistant.