Most handhelds and base/mobile versions have the same electronics. The basic difference is a larger speaker, (usually) better sound, and maybe a larger keypad or display. You can make a handheld sound as good as a base/mobile radio with a decent external speaker. If the larger keyboard and maybe larger display doesn't matter, then there's really no significant difference. As GM said, the antenna really makes the difference but you can hook up a base antenna to a handheld or base/mobile. I have a PRO-96 and a PRO-2096. Both are electronically identical and both have the same performance when hooked up to a base antenna.