Most support standard audio CDs plus writable and rewritable discs — specifically CD, CD-R, and CD-RW.
Many models include AM/FM radio functionality, typically with built-in AM antennas and telescopic FM antennas to improve reception.
Power options vary by model: some run on AC power (with a power cord), others use replaceable batteries (examples include 2×AA or 6×C alkaline), and some list a built-in rechargeable battery. A few listings note batteries are optional or that no internal battery is used.
Yes. Several portable models advertise anti-skip protection for use while moving — examples include 60‑second anti-skip and similarly labeled 'super anti-skip' features on other units.
Common wired connections include a 3.5 mm AUX/headphone jack. Some models also offer Bluetooth wireless streaming, USB playback, and additional auxiliary inputs for external devices.
Many listings note built-in stereo speakers — some specify dual stereo or 'dynamic high‑performance' speakers — and a few mention sound enhancements such as bass boost.
Some models add non‑CD features such as cassette recorders/decks and USB playback, and many also include AM/FM radio and auxiliary inputs.