You will most likely need two devices to attend this course. The first will be used to attend the class using Zoom; Robert highly suggests using a computer for this. The second device is for you to use for the reference material that you will download before each lesson. If you have a tablet, that would work perfectly. You can also print the reference materials if you wish although you will want to print them on photo paper. The last option is to use your cellphone.
The main device that you use with Zoom must have a webcam, speakers and a microphone so you can participate in class.