2 Band AM FM Radio, COVVY Digital 12/24H Time Display Radio Battery Operate Tuning Stereo Personal Radio Portable Pocket Size Radio Receiver with Earphone, Loud Speaker, Alarm Clock & Timer

the battery cover takes a 9-volt battery it's missing the cover this is so the clock keeps time if the power goes out you don't have to reset your time mm-hmm you don't have to have a cover you can just get a piece of tape across there take a plastic lid off us up then cut a little piece of plastic that fits and just tape it no big deal all right plug into the power source see it doesn't matter which way this plugs in inside a polarized plug as you can see the LED is blinking so to set your time on the top here you have your different buttons there's a sleep time alarm our minute play snooze you know all the little buttons on the top so the set the clock just hold down the time button then push the hour button whatever hour you need it to be same for the minute if you need to set your alarm clock to a different time same process just hold down the alarm button push your hour in your min