The black rubber on the cassette mechanism's pulley was worn and slipping, so I've added a thin black rubber band to get it working. Because of this, the sound fluctuates slightly when playing back. It's like a vibrato effect. Fast forward, rewind, and auto-stop functions work. This is a stereo radio cassette recorder with TV/FM/AM radio functions. I'm unsure about the recording function. The radio receives signals. The headphone jack works. AC adapter is not included. - Model: CS-P506 - Type: Stereo Radio Cassette Recorder - Functions: TV/FM/AM Radio - Power: DC 6V (Uses 4 AA batteries) Thank you for looking.