Most portable FM CD player radios run on AC power and many also accept batteries. Listings show specific battery configurations such as 6 C cells or 2 AA cells, and some models support both AC and battery (two-way power). A few listings indicate no battery option.
They commonly support standard audio CDs, and several listings explicitly state compatibility with CD-R and CD-RW discs.
Some portable FM CD radios include anti-skip (shock) protection—one listing specifies 60 seconds of anti-skip. Reviews of comparable units report generally reliable playback with minimal skipping, but protection features and effectiveness vary by model.
Many models include programmable memory to arrange tracks; some listings specify a 20-track programmable memory.
Packages often include the owner's manual and an AC power cord; some listings include headphones. Batteries are frequently required but commonly not included.