I've never owned one but these things look like the closest thing to a universal hedging solution to me:-
add an extension piece and you're done. I've got the Ego handheld and the multitool long hedger and find I need both for most of the jobs I do - bit of Googling shows only petrol versions available from Husky, bushranger, Honda, and Shindaiwa
Does anyone use a short hedger and how do you find it? - anyone know of a battery option too?