Rugged radios are classified by their resistance ratings under two standard frameworks: MIL-STD-810 (U.S. military environmental testing standard covering drop, shock, vibration, temperature, and humidity) and IP (Ingress Protection) rating, which specifies resistance to dust (first digit) and water (second digit). A radio rated IP67 is dust-tight and withstands immersion in water to 1 meter for 30 minutes. Motorola Solutions’ R7 is an example of a rugged, IP67-rated professional radio designed for demanding field environments. Rugged ratings matter in outdoor events, construction sites, golf operations, and any environment where radios experience rough handling.