I love me my Go Talk 9+. This is a very simple 12 button voice output device. You record short messages for each button. There are 5 levels that can be saved (like 5 different files on the computer) so you can switch from level to level without re-recording. The top 3 buttons remain consistent on all 5 levels and are good for general greetings, requests, or needs.
The board I have displayed on this Go Talk is used daily in my Life Skills class circle. We go through weather and days of the week through song. Because a number of my students have very limited verbal skills, they use the Go Talk and then attempt to repeat the words with their voices.