1 Motorola Nextel i576 Walkie Talkie w/ Direct Talk and Enhanced Privacy GRADE A | eBay
Direct PTT i655D Two Way Global Network, Analog & DMR All In One Global PTT Radio | Eventtone
It's no accident that Apple chose a yellow icon for its walkie-talkie feature. I dug out my old (2002ish) Nextel with PTT (push to talk). It was all the rage back then... :