An inseparable single-piece timepiece component includes a position adjustable mechanism including a rigid structure carrying, with at least one resilient strip, a position adjustable component including a tooth arranged to cooperate with a toothed comb included in an adjustment mechanism. In some aspects, a power tool includes a motor, a motor housing defining an air outlet, and a shield connectable to the motor housing and positionable to at least partially cover the air outlet to inhibit movement of debris into the motor housing through the air outlet. A user’s face is detected in a second image generated by the second camera. The mixture is coated with at least one substance rich in vegetable fat including an emulsifier. The transformer converts the power and outputs the power to the secondary side. In a character input device that adopts a predictive conversion method, a preset mathematical operation is performed when a numeric value is inputted, and the result of the mathematical operation is displayed as a conversion candidate.