Retevis Ailunce HS4 two way radio unboxing, conversion to 11 meter and performance test. 

First impression of the new HS4 10 meter radio by Retevis.
I'll convert this 10m export radio to 11m by holding the function and emergency buttons together during power up, switch to 2band, press and hold function to reflash.. don't release function button until reset says end. turn unit off and back on, band D for Chicken Band.
I prefer not to modify radios heavily and this one doesn't really need modifications since it already has adjustable echo, multiple banks of frequencies and SSB at a competitive price.