How to use: First, make sure the handpiece is properly attached. Then you can start using it to clean up small messes around your home. Just hold it and direct it towards the dirt. Note that this unit doesn't come with a dust container or charger, so you'll need to use your existing ones. When it comes to maintenance, keep the handpiece clean. Wipe it down regularly with a dry cloth. If the motor or batteries start to show signs of wear, it's a good idea to replace this whole unit as it's more cost - effective. And remember, it only fits certain models, so don't try to use it with incompatible ones.