Audio accessories decide whether coverage is usable. A radio heard perfectly on a bench is not heard at all over a running plant, and the resulting complaint is normally reported as poor coverage rather than as the wrong accessory.

Speaker output is 15 W (nominal); 20 W (max.).

Ingress protection is None. Accessory connectors are where dust and moisture do their damage first; a cover that is actually used extends the life of the accessory more than the rating does.

Operating temperature range is -30℃ ~ 70℃.