Really Loud, but you have to keep the directions handy.
Product is really nice and loud - but the directions are required to use the product - it is nothing you can figure out on your own - and believe me, if you set off the alarm without having a handle on the instructions, you are in trouble - you will be pulling off the battery case to shut the thing off. While the options for the machine are nice, again, it is not easy to use - you have to slide a switch here, hold down two keys there. Love the product and a great item to bug a child who refuses to get up, but be prepared for the child to throw the alarm out the door, and then go back to sleep. Just getting some kids out of bed is enough. However, after a couple of times hiding the alarm in the room, I haven't had to use it. It has promise, but I have scanned the directions AND copied them and pasted them to the back of the alarm.
Verified purchase: YesCondition: New