No battery is included inside product or its package.
one CR2032 button cell battery need to be prepared by customers themselves.
Specs:
Size: 52x52x12mm
Net Weight: 24.5g
Package Content:1 key-chain style Alarm clock; 1 operation instruction

❤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.
❤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.
❤Just touch the talking button, you will hear genuine & standard American English speaking that was kept recorded inside clock with masculine male voices.
❤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. ❤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.
❤This clock need to be powered by one CR2032 button cell (Not Included).