Using the Pocket Miku is a breeze. First, if you don't have them already, get AAA batteries and a Micro - USB cable from the adafruit shop. Once you've powered it on, use the stylus to play the 16 - key NSX - 39 keyboard. You can play around with the vibrato option, adjust the octave, and control the volume and vowel sounds (A - E - I - O - U). To input your own music, open Gakken's midi web - app and type in Hiragana to control Hatsune Miku's tonality. Remember, the instructions are in Japanese, but since it's pre - assembled, you're good to go. For maintenance, keep it in a dry place and handle the stylus with care. When not in use, switch it off to save battery life.