No instructional manual included for WiFi use of diffuser, you might be able to find a YouTube video for that if you prefer to use the WiFi setting. Diffuser is in excellent pre-owned condition. Easy to use. Just fill diffuser with purified/bottled water to line and add a couple of drops of your favorite scented oil and ENJOY! Diffuser has different LED color options. Uplift set includes 3 - 0.15 fl oz bottles (Brand new) VSADEY set includes 6 - 10 ML bottles (All bottles brand new except the peppermint bottle which I used a few drops of). Ships from smoke/pet free home.