The soothing built-in 5-color LED lights with multiple timer settings make the NovaFuse?? USB Diffuser ideal for all environments. Connect the NovaFuse?? USB Diffuser to any USB power source to enjoy the soothing aroma experience whether at home or during travel.?A USB adapter is included for your convenience. When setting up your NovaFuse, be sure to check your water reservoir for the cord, as we pack it inside your diffuser for safety while shipping.