Battery life is rated at 16 hours of continuous use, and in practice I found that it lasted throughout the day. (businessinsider.com)
Depending on what kind of practice you go with, you might still have time to think about where you will actually deliver your baby. (annapolisareadoulas.com)
Picking up a guitar or kicking a ball felt weird the first time you did them, but with practice you get better and better. (myintimcity.com)