Adjusts to your developing skills. This Communication Builder is equipped with frames, which allows you to refine communication choices as the person develops new skills. Record your own messages with the simplest push of a button. Light, durable and easy to carry with a built in handle. Frames included are 1, 2, 4, 8 and 16-window options. Re-recording is required when you change window frames. Total recording time is 300 seconds.