Record and Play Back. Smartpens record everything you write and hear so you will never miss a word. Replay your meetings or lectures simply by tapping on your notes. 1. 1 Livescribe paper required. Dont record without permission. Record everything you hear, say and write, while linking your audio recordings to your notes. Replay audio directly from paper by tapping on your notes. Echo desktop software allows you to save, organize and play back interactive notes from your mac or windows computer. Share notes and pencasts as images.