Got a SOLO 4 cordless at a garage sale for $3! And it works....
Only had a K alert so far. Plenty of range for the C/O K!
I use my 8500 X50 99% of the time, but how is the SOLO 4 on KA? I borrow my friends truck from time to time and have to use the SOLO (outlet wiring went to power a stereo system (I don't know why..........))
It there a site with test results for this unit? Thanks!