An exemplary electronic device includes a front cover, a display screen and two speakers located on the back surface, and a back plate abutting against the display screen and two speakers. Information exchanged to enable customization is adapted based on a user’s privacy preferences . The sleeve is retracted in order to deploy the stent. For example, the local application module issues a control code in a state matched with a control code format converted by the conversion module. A method may include obtaining a first cycle of a fundamental component of a current, obtaining a second cycle of the fundamental component of the current, and comparing the first cycle of the fundamental component of the current and the second cycle of the fundamental component of the current to determine if a difference of the first cycle and the second cycle is greater than a threshold amount. The display area includes a first light blocking member including a plurality of first openings, and the peripheral area includes a second light blocking member including a plurality of second openings.