Portable Lightweight Cassette Player And Recorder With Built-in Microphone In the 70s, it was the next step in portable music after the 8-track! Lightweight reproduction with built-in microphone includes auto level control, 1-touch recording, fast-forward & rewind, volume control & headphone jack. Also includes external microphone with stand & jack, auxiliary jack for mp3 or other digital audio players, retractable carrying handle, and AC power adapter. Also operates on 4 C batteries, not included. 9.5" x 6" x 2".