I just purchased one like in the below link used on CL for $10. It is branded under many different names like Emerson, Sunlite, Lundin ect. The light is useless, the built-in horn is pretty timid but it could warn a walker you are behind him/her without shocking them too much. The Radio works pretty good, surprisingly both on am and fm. At least it does so here in Miami. Volume isn't too bad. New I see them locally for around $30.

http://www.amazon.com/Sunlite-Deluxe.../dp/B0011FWPA6