?This clock need to be powered by one CR2032 button cell (included). ?Buy it for your elderly people who are visually impaired or for the blind, of course it is also suitable for you if you like it. ?A clear & loud speaker is built in, making the users hear it easy and comfortable, it is especially useful for the people who has macular degeneration. ?Just touch the talking button, you will hear genuine & standard American English speaking that was kept recorded inside clock with masculine male voices. ?This talking alarm clock does not have a display, but it can speak to you, telling you the time, date, week as well as time & alarm settings. ?This talking alarm clock is designed with key-chain style, cute & exquisite work. White color clock body and black color buttons makes it easy to be visible by the people who are visually impaired.