This sound machine has literally been our saving grace. The first night we used this was the first night he slept through the night! We were using the hatch before this one (for 6 months) and he seems to like the deeper bassier white noise sound. So this fan sound works amazing for him! Wish we’d found it sooner. It is VERY simple and easy to use. Just an on and off switch and you just twist the top to make it sound louder or softer. Kind of pricey BUT we literally bring this with us when we’re traveling because nothing compares. It’s worth it.