A recorder that can record phrases with variable tempo and constant pitch. I used it to transcribe guitar phrases by importing them and halving the tempo. - Model name: RIFF-O-MATIC U40 - Brand: AKAI - Function: Variable tempo/constant pitch phrase recorder - Input/Output terminals: Line input, line output, headphone output - Operation buttons: Continuous recording, normal recording, play/stop button. Adapter included (although there was poor contact, it powered on). I was able to power it on and record/play. Since I haven't used it in a while, I'm selling it as junk. No instruction manual; please use Google. Thank you for viewing. No returns or exchanges, please.