On the other hand, they were allowed somewhat greater freedoms, such as the right to own a radio that was not sealed to only allow being tuned to North Korean stations (as long they did not listen to foreign stations in the presence of North Koreans). More importantly, since around 1980 they were allowed to travel abroad, and participate in the important and profitable export-import business.
Conversely, they had more freedoms, such as owning a radio that was not restricted to only listening to North Korean stations (as long as they did not listen to foreign stations when North Koreans were present).  Additionally, since around 1980, they were permitted to travel abroad and engage in the lucrative export-import trade.