I really enjoy using this item for home projects. I looked at them for a couple of years and because they were so affordable I took them. The product comes with its own organizer, convenient for storage. Contains rechargeable batteries so no additional purchases are required. The kit comes without instructions but is quite easy to use. Can be switched to manual mode by pressing and holding the left OUT button. If the unevenness exceeds a few degrees, an alarm sounds. It self-levels, looks precise and is perfect for a variety of applications from hanging curtains to hanging artwork.