DZT1968&reg; Square Wooden LED Electronic Desktop Digital Alarm Clock Color:Show as picture Material : MDF + PVC;Size:62X62X62mm (LxWxH) Dual Power Supply: DC 6V input or by battery (4 x AAA) not included Alternately display time(15 seconds) and temperature(3 seconds) in solid display mode;The "VOICE" mode only available when you use the batteries, that is the "Power Saving" mode;It also works in voice mode. Make some noise (clap your hands, rap on the table or pat the clock) Package Include:1 xAlarm Clock+1 x USB Cable