black boombox

Most models offer Bluetooth (various versions such as 5.0 or 5.3) plus wired options like a 3.5 mm AUX/line-in, one or more USB ports, and SD card slots for file playback.

Most CD-capable models support standard audio CDs and writable discs (CD-R and CD-RW), and some explicitly support MP3-format discs for longer-playback files.

Speaker power varies by model: compact units often list lower RMS outputs (for example around 4 W), while larger or higher-power units advertise higher total wattage (examples include a 40 W configuration). Some models also specify dedicated woofers and tweeters for improved bass and clarity.

Common playback sources include CDs (CD, CD-R, CD-RW), cassette decks (often with recording), AM/FM radio (some models add shortwave), Bluetooth streaming, USB and SD card playback, and 3.5 mm AUX inputs. Some models explicitly support MP3-format playback.

Some models include cassette decks with recording capability and built‑in microphones, while others provide digital recording or USB/SD transfer features to archive tapes or radio broadcasts as files.

Sizes range from compact units a few inches tall and weighing about 2–4 lb to larger retro-style models (example: ~8.5 × 28.6 in at 18 lb). Common portability features include carrying handles (fixed or fold-down/swivel) and battery operation for use away from AC power.

Typical extras include 3.5 mm AUX inputs and headphone jacks, USB ports and SD card slots for playback or recording, and microphone inputs or built‑in microphones for memos or karaoke.