... .8 X 26.5 MM Press button for record & playback voice message Recording time: 3"/ 6 "/10" / 20" / 30" seconds Using ... -0346,10,15,20,30,60 seconds push play switch, detachable push record switch, AA×3 battery box case speaker: 50mmbattery: AA ... -0356,10,15,20,30,60 seconds push play switch, detachable push record switch, AA×3 battery box case size 6.5 ...