Light
The WN03 white noise machine offers only one single light. However, you can hold the upper Light button for a while to adjust its brightness.
Sound
Once you've confirmed that the device is in the unlocked mode, you can adjust the sound volume by pressing the Volume Increase and Decrease buttons.
If you wish to switch to another sound, simply press the Previous and Next track buttons once.
If you still need help, please send us an email at support@momcozy.com.