These energy spheres are personally charged So they require some time after you order them.
Our recommendation of use: Open Only when there is uncomfortness in the area, or if desired, every night.
For the Chinese balls: By shaking them once or twice the vibration of the ball will actually radiate a strong amount of energy to the room.
Be aware these spheres do run out of energy depending on how much you touch them or allow others to touch them and how much negativity is in the house.
If you live in a rather positive environment we have seen spheres still be charged even after 2 years when being always opened. So it all depends on the environment.
If you feel your sphere needs to be charged you may ship it back and will re charge just pay shipping cost.