ok here is a hummingbird tcr id-1 i got it on a boat i sold ok little scratched up never took boat out does power on and other than that i dont know like i said never went in the water. 100 obo or trades cheap highpint open do not want to add any money so ... i looked on ebay the head unit alone sells for like 75. bucks you get all in pictures mounting bracket transponder ect thanks james